I was using the fglrx driver for my amd HD-5450 and when I did the dist-upgrade tonight it installed the 3.7.1 kernel and broke the fglrx driver. There was a message about it during the upgrade but I couldn't read it before it was gone. Checked dmesg but it wasn't there.
The problem that I found was I could no longer use the amdcccle to adjust the display and when moving windows across the screen it was jerky.
Probably a bad description and will supply any more info I can if needed, just tell me what you want. I went back to the 3.6.10 and everything works.
john