I wonder if anyone can offer any advice for a speed problem I have. About a week ago my computer started, very noticibly,taking longer than usual to open up web pages and my own files. I did a disc cleanup and did a defrag even though it said it wasn't needed. My Norton software got a Trojan Horse and quarantined it. The only other thing that may have a bearing on this is that my ISP is Adelphia Cable and was recently taken over by Time Warner. I don't know what else to check. Thanks for your help.