If you have problems with the 4.x viewer due to video drivers, there are probably other calibre features that will have similar problems in version 4.x; such as the comments editor, and the ebook editor.
But, if your problems are just with the viewer, then maybe your problem isn't video drivers. This thread, from post 16 onwards, may offer some things to try ==>>
[Help] Calibre 4.X eBook Viewer Broken
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