Windows 7: BSOD on waking from sleep

Hi I have a Toshiba Satellite A200 series computer. After installing Windows 7 home premium, I started getting the BSOD after waking my computer from the sleep mode. This does not happen all the time, usually after I have left my computer on all night to run the scan software in Security Essentials.
My previous operating system was Vista OEM, I bought the computer in Jan 2008 but I think it may have been manufactured in 2007
I have read the post by SuperNoob (posts dated 25/10/2010) where this problem was resolved by updating the display adaptor driver, however I am cautious about doing this as the ATI site warns against using their site for laptops, particularly Toshiba, as Toshiba provides their own drivers. I do still have the Catalyst Control Centre on my computer.
SuperNoob mentions downloading the ATI driver version 10.4 but I see there are later drivers now available.
I have tried the Toshiba websites and forums but cannot get a decent reply on this issue, mainly a suggestion to reinstall software. The Toshiba upgrade was not an easy task and I am reluctant to go through this again.
If I uninstall my current version of CCC will it delete it completely off my computer, or will it still be there if I perform a system restore?
I have tried running verifier but get vertical lines on my display, no BSOD happens and my system seems to freeze.
I did notice when I got the BSOD today that the same lines appeared very briefly before the BSOD messages came up
I hope someone can help.
see attached file
Thanks