MobileRead Forums - View Single Post - Portable reader works, main reader doesn't.

Uncle Bing · 07-19-2020, 09:05 AM

I added the environment variable as suggested to stop hardware acceleration. Windows 10 did find a later graphics driver for me. All to no effect. I uninstalled Calibre and portable Calibre and deleted every file on my PC with the word 'Calibre' in it and every entry in the registry with the word Calibre in it and reinstalled the latest Calibre. Same problem. So in the end I uninstalled Calibre 4 and installed Calibre portable 3.48 which works fine and does what I want.

Thanks for your help though.

07-19-2020, 09:05 AM	#3
Uncle Bing Member Posts: 20 Karma: 10 Join Date: Jun 2014 Location: North-east Thailand Device: Kindle Paperwhite	I added the environment variable as suggested to stop hardware acceleration. Windows 10 did find a later graphics driver for me. All to no effect. I uninstalled Calibre and portable Calibre and deleted every file on my PC with the word 'Calibre' in it and every entry in the registry with the word Calibre in it and reinstalled the latest Calibre. Same problem. So in the end I uninstalled Calibre 4 and installed Calibre portable 3.48 which works fine and does what I want. Thanks for your help though.