My computer has a mind of its own. I guess depending on how it feels that day it will respond accordingly. Sometimes when i turn it on, nothing happens. The monitor just stays blank and says no signal. Other times after i give it a break between attempts it will just start right up. When i turn it on and nothing happens, the tower is still running and everything sounds the same. So i dont know what i should do, and was just wondering if anyone would have any suggestions on how to fix this. Also, i cannot format my pc because i lost my recovery disk.