Local Folders issue SOLVED by disabling Hardware Acceleration
After installing version 78.4.0 (and continuing into 78.4.1), I have an issue with many of the folders in my Local Folders account. When I click on an affected Local Folder folder, it is not highlighted and no messages appear. Messages will appear if I scroll the mouse pointer over the message pane. I can then also read the messages, etc. If I move to another Local Folders folder, messages may appear or they may not (always the same folders) until I move the mouse pointer as described above. Note that the folder name is also not highlighted after clicking it. Sometimes the entire folder/account column on the left side of the screen is blank until I scroll the mouse pointer over that column. Very annoying! Any ideas? FYI - I have tried "repairing" the folders in question. That does cause the messages to appear but as soon as the folder loses focus, the problem reappears - meaning the messages disappear and do not reappear until I either scroll the mouse pointer over the message pane or re-repair the folder.
Ken in Kansas
Modified by Wayne Mery
Chosen solution
See this topic for a similar issue: https://support.mozilla.org/en-US/questions/1312342
You probably have either a broken layout or hardware acceleration is enabled.
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Does the same display issue appear in safe mode (hold Shift when launching TB)?
sfhowes - thanks for the response. No, Thunderbird does not exhibit the behavior I described in my post if I start in safe mode. That would indicate ....? Ken in Kansas
Chosen Solution
See this topic for a similar issue: https://support.mozilla.org/en-US/questions/1312342
You probably have either a broken layout or hardware acceleration is enabled.
That did the trick, sfhowes. I tried the "hardware acceleration" option first. Disabled it and everything worked fine. I also applied the "reset" option just for good measure. All is well.
Was this a result of the recent update(s)? I had not changed anything prior to applying them.
Ken in Kansas
I think TB 78 enables hardware acceleration by default, unlike past versions. The correct setting seems to vary with each system, although I wouldn't think an email client depends on any graphics property. The evidence suggests otherwise.