NVIDIA screwed up and pushed some buggy drivers, affecting many users who are coming to AU with the same issue:

Strange artifacts along window borders after waking computer from sleep mode

The question has a list of affected cards at the end:

Someone has proposed that this question be made a community wiki, so that this section could be more easily edited (I don't agree but I've been invited to write the meta question - see my answer below).

In chat, the person who wrote the NVIDIA question agreed with me that there was no benefit to making this post community wiki. Most of those who answered it have not, as far as I know, given their views yet.

Community wiki posts:

• may be edited by any user with over 100 reputation
• do not result in reputation changes (up or down) for the post author (but if a post already has votes, converting to community wiki effectively freezes rep gained or lost from it - previous rep changes are not wiped)

###Should this post be converted to community wiki? (this can only be done by mods, so last call is with them)

Note: it has also been suggested that the question should be closed as a bug report. I fear my question would be too broad if I also invited discussion on that, but I will edit if people think it should be included