I was having problems with my girlfriends machine, so I updated her machine to Mint 13. Problems went away.
I have been have the blue-people problem on my thinkpad for awhile but never encountered a solution that worked, so I decided to install Mint 13 on my W520. Unfortunately, during the install, I've lost sound. I pulled up a terminal and did "lspci" and got this:
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04)
01:00.1 Audio device: NVIDIA Corporation GF108 High Definition Audio Controller (rev a1)
But it seems I can't get back sound. Any ideas would be really appreciated......