Originally Posted by Radical_Edward
I bet it's a driver to do with your motherboard. Since it boots into safe mode it's a good bet that's what it is. Ion, did you update any drivers lately?
Have you tried booting to last known good configuration? What about running startup repair?
As I just said, it won't even boot into safe mode at this point. I'll mess with it more this afternoon and see what I can accomplish. I can't imagine it's a driver, or Ubuntu should work fine (it did a few weeks ago, at least).