Thread: Portable reader works, main reader doesn't.
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Old 07-17-2020, 01:36 PM   #2
DNSB
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Quote:
Originally Posted by Lung Bing View Post
When I click on a book in installed Calibre on my PC the reader opens a transparent rectangle with the title of the book, the minimise, maximise and close controls on the top right as usual and that's it.

I have had to download portable Calibre and point .mobi etc at that to read a book having disabled all file types in Preferences on the main program.

What have done wrong? I've just updated to the latest 4.21 64-bit but it's been like that for ages.
What version of calibre portable are you using? Are you running Windows 10? Generally, the type of issue you are seeing is a conflict between the QT WebEngine code and your video driver. So the first recommendation is that you update your video driver if that is possible. If not, you may want to check the Viewer in 4.2 opens with only blank white page thread in the Viewer subforum.
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