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Old 02-21-2020, 03:24 PM   #2
DNSB
Bibliophagist
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Join Date: Jul 2010
Location: Vancouver
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Quote:
Originally Posted by BeartoothBronsky View Post
I use Windows 7 SP 1 & refuse to upgrade to that abomination, Windows 10. Whenever I get a message to update Calibre (I use 64-bit version 4.11.1), it warns me not to upgrade, but to back off to an old version of Calibre - 3.48. I ignore this & continue to download Calibre new releases & updated third-party anti-DRM plug-ins. It still works fine for me. Is there something I am missing by not going back to 3.48? As long as the newest Calibre works seamlessly with Windows 7 SP 1, why should I revert to an antique version?
The issue that has come up is that QT has issues with some video cards/drivers. The most common symptom is that when you open a book in either the viewer or editor, you see blank pages. The fun in this is that as calibre incorporates newer releases of QT, there is a chance that your video card will be on the blacklist.

My advice is if it is working for you, don't worry about it. Just make sure that you keep the installer for your working version around until after you are satisfied that calibre is happy after installing the latest and greatest so you can back out of an update that breaks your system.
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