My ACER Veriton 5200D have WinXP prof installed. Specs is RAM 256 Mb, Frequency 1800MHz. I have problem with my notepad which is always open from time to time by itself. It's so disturbing me. At least 3 to 10 times it is open by itself. Is it virus or Spyware or malware ?

Pls anybody whoever faced this kind of problem to give me an advice.

Thanks & rgrds