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Hi Gents,
Calibre 4.0 x64 upgrade
FYI, the viewer displays a white page for an epub book, azw3 as well. No menus, no lines, nothing.
No errors messages. A white windows.
Windows 7 64bits Ultimate SP1 running in French version.
MS Essential anti virus.
MSE disabled for /calibre2/calibre.exe does not fix.
MSE disabled for /calibre2/ebook-viewer.exe does not fix.
Test done with trouble-free epubs in older calibre version.
BTW, for a downgrading, do you mean to just re-run the 3.48.msi ? nothing else ?
Best regards
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