I'm working on a Dell Vostro 1000 laptop. It was running slowly and hanging, antivirus scans turned up nothing and the same with the Dell diagnostics (DFT hung - but Dell's diagnostics gave the HD a pass) so I imaged the HD and installed XP Pro on it.
The laptop is still slow! (It takes a noticeable delay to enter words into the Google search box in IE and the computer hangs every time it enters the XP screensaver.)
What are the likely possibilities at this point and how would I go about checking for them?