ok so yesterday when on my computer i had enough and wanted to switch it off. SO on my wireless keyboard there's an half moon sign so i pressed that, and the computer switched off. This morning went on it again and it worked until the part were it comes up with the windows xp home edition screen with the loading bar!!! it suddenly goes blank and says windows is going to sleep and then does the exact same thing!!!!!!
WHAT DO I DO TO FIX THIS!!!????