I made an extensive table in Numbers yesterday and saved when I was ready for the day. Today I want to work on it again, and it opens without a problem, but I can’t edit any cells… I can’t click in any cell, I can’t type anything inside it and the 1-2-3 numbering of the rows and the A-B-C ‘numbering’ of the columns doesn’t appear either…
The only thing I can edit are three cells at the top of the page…
What is wrong ?
The solution might be rather simple : probably, you have accidentally entered the Printing Preview mode.
You can see you are in Printing Preview mode when there are 2 buttons visible at the bottom the Editing pane on the right : “Done” and “Print…”
If so, just click on the “Done”-button to leave the Printing Preview mode and go back to the main Editing screen.
Since I need to work form home at this moment, I have connected an external display. It works great and I now have a far better overview than I had on my tiny MacBook Pro screen. Now I have connected a USB-keyboard and a wireless mouse, so I would like to close my MacBook’s lid while I’m working on the external display. But, somehow, every time I close my MacBook’s lid, the connection to the display is lost and the display goes black…
What is going on ?
To prevent your battery from draining while you are not using your MacBook, all connections are cut off when the lid is closed (since you cannot access the keyboard or the screen when the lid is closed). This also means that the connection to your external display will be cut off whenever you close your MacBook’s lid.
However : since your MacBook’s battery will no drain as long as extra power is provided, this shut down feature will not be activated as long as your MacBook is plugged into the wall charger. So, there’s your answer : just plug your MacBook into external power, and your external display will not go black when you close the MacBook’s lid.
Note : if you already have your MacBook connected to external power and your external display still goes black, see this post.
The fact that it’s a Java-based app is not the real problem (as long as you have the latest version on Java installed on your Mac). The real problem is that macOS 10.15 Catalina has very strict security and privacy settings (compared to any previous version of macOS, OSX or MacOSX).
Since I upgraded to macOS 10.15 Catalina, I had to buy the new version of my beloved EyeTV app. So after buying the all new EyeTV 4 (64bit) at Geniatech (who took over EyeTV from Elgato) I installed the app, but whenever I try to run it, I get an “Application not responding” error. I have tried reinstalling the app, but that doesn’t help. I’ve also tried to download and install a newer version, but that doesn’t help either. Deleting the preferences (using the EyeTVreporter.app) doesn’t help either. Even uninstalling EyeTV and all associated files completely (using the EyeTVreporter.app) and then reinstalling doesn’t fix this either…
This is so strange, because EyeTV 4 Beta was running fine on this same Mac…
What can I do ?
The problem is not in EyeTV, it’s in the new extremely strict security and privacy settings that are new to macOS 10.15 Catalina.
To fix this, do this :
quit the EyeTV app by clicking on it’s icon in the Dock while pressing the ALT-key on your keyboard
in the popup menu, the regular ‘Quit’ option will now turn into ‘Force Quit’
click on ‘Force Quit’ and make sure EyeTV app is quit (so there is no longer a black dot below it’s icon in the Dock)
click on the Apple-icon in the top menu bar of your screen
from the pulldown menu select System Preferences
make sure you are in the System Preferences window (main window), if not, click the ‘dots in a grid’-button in the top menu bar of the window
in the System Preferences window, click on Security & Privacy (iron Home icon with circular dial on it)
in the Security & Privacy window, click on the ‘Privacy’ tab
in list on the left, click on ‘Files and Folders’
in the list that now appears on the right, scroll down to EyeTV and put a checkmark at ‘Documents Folder’
if you get a popup warning “EyeTV will not have access to files in your documents folder until it is quit” click the “Quit Now”-button
I have been using my Canon CanoScan 5600F scanner for many years with my Mac, and it has always been working great. However : now, in macOS 10.15 Catalina I keep getting error messages that the scanner cannot be found…
Sometimes I manage to get things working by replugging the USB-cable and switching the scanner OFF and back ON, but that solution doesn’t last…
What can I do to solve this ?
even though Canon does not list support for macOS 10.15 Catalina, the Canon driver that used to work in MacOSX 10.7 Lion through macOS 10.14 Mojave still works in macOS 10.15 Catalina, so if you do not have this driver already, download it here
To solve your problem, do this :
go to Apple-icon (top left in the menu bar) and click on “System Preferences” from the pulldown menu
in the “System Preferences” window, click on “Printers & Scanners”
in the list on the left, at “Scanners”, select your CanoScan 5600F
then, click on the Minus-button at the bottom of the list on the left, to delete the scanner from the list
now, switch OFF your scanner and unplug the USB-cable from the scanner and from your Mac
then, go to Apple-icon (top left in the menu bar) and click on “Restart…” from the pulldown menu
when prompted, UNcheck the option to reopen all open windows and restart your Mac
then, plug the USB-cable back into your scanner and your Mac and switch your scanner back ON
when your Mac has restarted, open System Preferences
in the “System Preferences” window, click on “Printers & Scanners”
in the list on the left, at the bottom, click on the Plus-button
in the window that opens, select your CanoScan 5600F from the list and click the “Add”-button
you can now select your CanoScan 5600F from the list on the left and click on the “Open Scanner” button on the right to open it
now, the “Scanner” window will open and you will be able to scan
Note : you might encounter the ‘scanner cannot be found’ error again… if so, just delete the scanner from System Preferences, then add it again… [if you cannot live with getting this error once in a while, and you cannot wait for Apple and/or Canon to come up with a definite solution… have a look at the VueScan scanner-app]
I have placed a table in one of my notes in macOS Notes.app. I have managed to expand the table by adding some rows and columns, and I have put text in any cell I wanted to, but… all text is automatically lined out to the left, and I want it centered inside the cell…
How do I do that ?
Contrary to what you might expect, text layout tools in Notes.app can’t be found in the taskbar of the Notes-window (you may have noticed that the “Aa”-button will even be greyed-out once you start editing text with a table). The text layout tools are in the screen’s upper control bar :
to center any text (not just text in a table’s cell) in Notes.app, do this :
select the text (or the cell the text is in)
then press the [CMD]+[SHIFT] +[ \ ] key combo on your keyboard
or go to : upper taskbar (the one that has Apple-icon, Notes, File, Edit, Format, View, Window, Help) –> Format –> Text –> Center
I sometimes need to view the invisible files on my Mac. I know I can do this using the Terminal.app, but isn’t there an easier way to do this ?
To turn on the ‘Hidden File Viewer’ (or ‘Invisible File Viewer’) mode in MacOSX, you could use the command line in Terminal.app or you could use little apps named something like ‘Hidden File Viewer’ or similar.
In macOS 10.12 Sierra and newer, there is a far simpler way to do this :
press the [SHIFT] + [CMD] + [.] key-combo on your keyboard
Using this key-combo, you can switch the visibility of invisible files ON or OFF.