I am not able to open a command prompt window from the Run dialogue box. Also, I am not able to get auto updates for my Avg antivirus and Malwarebytes programs, Internet Explorer 7 works fine though. I want some new software to remove virus or trojan as I cant find one. I have tried scans in safe mode and with Hijack this but I am not able to see anything bad. I am running Windows XP SP3 and if anyone can help then it would be appreciated.