yeah, try a different keyboard and mouse, and different USB ports on the computer. Also, it probably won't damage the OS, cause it's not accessing any system files. But failure to post may mean that hardware failure is imminent. Might wana ask the store about it.
Has it done this EVERY time, since purchasing the system? If so, they gave u a faulty system and u should be able to have them take care of it. Prly a mobo issue or something.
Ok. So I found out it was my external hardrive which causing the problem. Its a Seagate GOFlex 1TB. What do I do to solve this?