ATI Radeon 4670 Driver Problem

Hello,
i have a problem with drivers for the ATI graphic card. (Using Acer Aspire 8935G laptop.)
Everytime i try to play some games, for ex. Minecraft, i can play for few minutes until screen goes black, the goes through series of random colors and shades, until a BSoD will appear. (It said something about atipmdag.sys...)
I've installed the drivers from official Acer page before.
BUT! It didn't happen for the first time!
When i formatted my Win7 for first time, i installed the drivers and the BSoDs were here too!
Then i gave my laptop for repair, but it's the same now.
Any solutions?

By the way, i gave a dump.

Hi.. If i am not wrong you have a problem BSOD 0x00000116 atikmpag.sys ??? you must do this - at first
1)delete your drivers ATI with AMD Catalyst Control Center
2)clear remains with programm Display Driver Uninstaller 12.7.2 get remove and reboot IMPORTANT before remove you must put this checkmark in front of C:\AMD or delete this place manually
3)get new drivers ! you now NEW drivers from ATI Radeon? 4000 Series Drivers choise your windonws version
4)if BSOD not disappeared after install drivers from c:\remont copy this file atikmdag.sys to c:\windows\system32 or for 64 bit WOW64

Erzhan said:

Hi.. If i am not wrong you have a problem BSOD 0x00000116 atikmpag.sys

Actually, i have a Bug Check Code 0x1000007e atipmdag.sys, not atikmdag.sys...

Refreshing the topic with hope someone will actually help...