Last month I removed the Virtumonde virus and other harmful malware from my computer with the help of this board after posting a thread for help. I was given a clean bill of health, so to speak, but ever since I find that my computer screen goes completely blank at random times, and nothing I do can retreive a picture- I always have to restart. I find it happens when my power cord is not plugged in to my laptop (I have a Compaq nx 7400 laptop). I don't think it's ever happened when the computer is attached to a power source. Can this be related to the virus removal, or is it likely a new virus? Or, if it is not a virus at all, do you have any suggestions as to how I can diagnose the problem? Thanks so much for your help.