I've been getting several random DDHELP winn.dll errors while surfing for the last 2-3 months and I've heard it could possibly be due to bad memory. Question is how do I test my memory? Is there a good free dowloadable program, maybe a website that tests it? I thought PC Pitstop would, but I don't see where it does. Any thoughts are appreciated. Note: I use Windows 98, IE6.0 and keep the system defragged etc on a regular basis.