MBP display checkerboard after sleep

Hi Guys,
I found yesterday after opening the lid of my MBP once I got home from work that the screen had turned into a multi-coloured checkerboard of 'fuzzy' patches.
Doing a hard boot didn't resolve the issue as it did the same thing, then cleared and got 'stuck' on the blue screen that flashes up on boot. The second time I did a hard boot though, it came good.
I have read elsewhere that this is something to do with the logic board.. Anyone else having the same problem?
I use an older CRT monitor at work as a second display and I am pretty sure unplugging it had something to do with it the first time, but it just happened again after waking the computer from sleep. (Running Motion 2 at the time)
Any help will be greatly appreciated!

Hi Guy's,
I bought my MBP last Thursday and it was working fine until 2 days ago when I got the checkerboard after only a few minutes of use. Hardware check gave back the Failure code: 4SNS/1/40000000:'Tm0P' which I sent to Apple but no reply yet.
I'm bringing it back to the shop first thing tommorrow morning. I don't have time to wait a week or two for them to fix the problem especially if their "motherboards" all got the same hardware onboard. I haven't been able to spot any stories by Apple about this issue.
Looks like Apple has a QA issue with their ATI-X1600, or that the QA issue is ATI's all the way.
MBP 17" 2GB Mac OS X (10.4.7)

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Hi Guy's,
I bought my MBP last Thursday and it was working fine until 2 days ago when I got the checkerboard after only a few minutes of use. Hardware check gave back the Failure code: 4SNS/1/40000000:'Tm0P' which I sent to Apple but no reply yet.
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MBP display checkerboard after sleep

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