all was fine till last month for last 2 1/2 years.... but all of a sudden with the increased memory load ( while running games or photoshop) my computer started restart on its own. 1. checked for any virus ............... no infection found. 2. i checked my ram using "mem check" it showed some prob but surprixingly on disabling L2 cache there was no prob with memory address. 3 checked the existing ram chip ... no prob... even got a new 512 mb ram and added to the existing 256mb. 4. now it doesnt restart but some times the application shuts down without any warning. is it possible that my l2 is bad..... is there a reliable software to find this out.... i want to do it before my 3 years warranty gets over.