Macbook pro Freezes, Screen splits into two half, scrambled..

Hi,
Just bought a new Macbook Pro 15.4, 2 Ghz i7 processor, AMD Raedon HD 6490M 256 Mb Video, 4 Gb Memory...
After Three days, whenever I try to play a video, in quicktime or vlc or just load a video song on virtual dj,
the screen just freezes and splits into two. The Force quit doesnt work.
The only thing that works is "Hold the power button for three seconds."
Please help..
Thank you

I have the same issue. This began before I installed Lion OSx. Happens randomly and not connected to any particular application. Here are some screen shots. It happens at least two times a day and is getting very frustrating. Taking it to the genius bar this weekend.
All I can say is that it began after i applied some major updates (most probably the ones to fix the freeze issues that were cropping up on these new macbooks when they were launched). This is only my observation.
MacBook Pro 2011 March (Thunderbolt) i7 - 2.2 GHz.
8 GB RAM

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