Is it the 5920 or the 5920G? i.e. does it have the Nvidia graphics chip in it?
Reason I ask is because of:
Nvidia - Wikipedia, the free encyclopedia
Quick summary for those that don't know - looks like a whole bunch of the 8xxx and 9xxx series Nvidia graphics cards have 'problems' (probably due to a bad chip substrate). Laptops tend to be the first to fail due to their usage patterns with the power cycling.
Several manufacturers have been offering extended warranties to cover the problem, not sure if ACER is one of them.