Okay, so I have Windows XP (running for 4 years now) and McAfee Security Center. McAfee's been takin good care of my comp, but lately I have reason to doubt that. Whenever my computer (which is shared with my parents) stays in screensaver for too long, when I start it back up, it says it detected an Adware called "PurityScan" or something. When I'm on my account and try to remove it, it does nothing since I'm a Limited Account. But when it happens to my mom or dad, who are admins, they choose to "remove" it and nothign happens. It keeps coming back each time screensaver stays on for too long, and worse -- it NEVER shows up in the McAfee Security Center scans!!! I'm at my wit's end, PLEASE HELP!!