I had the same issue when I switched to xorg. I don't know what it was but when I did my upgrades recently, I noticed it didn't do it anymore. May want to upgrade your GUI programs, especially xorg, and see if it helps.
It is very annoying though isn't it? You can be moving the mouse or typing on the keyboard and blink, off it goes.
Hope that helps. I use Gentoo by the way. No clue how to upgrade SuSe.