You are right. Issue I have, including corruption on the windowing system, bothers me more than the one reported here.
However I arrived at this thread because I experience the XBMC interface instant corruption with the latest driver I have downloaded from Intel server, right after installing Windows OS. Therefore I reverted to my current one after experiencing XBMC issues described here and I observed that the old one bring a fix, however I hopped that this two issues are related and you guys didn't have an always on setup.
Now it's clear that there are two different issues and I will fill another thread after taking some screen corruption pictures.
Possible that my corruption problem to be something related to my main board as well. Does anybody have a mobo with two HDMIs which run XBMC for days? Mayber Gigabyte H77N ... it's great for HTPC setup.
Thank you very much and I'm waiting for a fix for this issue as well.