Walls blinking

[Peterfied]

malloc Offline
Junior Member said this:

Hello
...
Wen I run Amnesia walls blink.
Closing the window a strange rectangle appears in the upper left of the screen. The windows are not drawn on this rectangle and only displays the desktop.

This made me think the driver error and googling a bit I found:

https://launchpad.net/~xorg-edgers/+archive/ppa

I updated the drivers to the beta version:
"
sudo add-apt-repository ppa:xorg-edgers/ppa
sudo apt-get update
sudo apt-get dist-upgrade
"

Reboot and the game looks perfect now.
...

Now, the walls barely falsh only when initally going into a room an some of the items on the wall flash, as for me i run an ASUS laptop with a 4x Intel® Core™ i3-2350M CPU @ 2.30GHz; OpenGL Renderer of Mesa DRI Intel® Sandybridge Mobile and I think i should be able to run it, I've been looking for the HPL.log file, but to no luck.
I've bought the game twice- waiting for a refund on desura!!! -and once on steam, which loaded, an installed!

an then this happened... fudge-nutting-cake-chewy. anyway, a little help in finding the HPL.log for steam or equvialent would be night an greatly appreciated, i've starter troubleshooting as far as i can get, i'm going to bed now.

PS: I run through Linux Mint 14 a close cousin of ubuntu