Arrrggghhhhh...I tried running Check disk (Auto. fix problems) but it isn't helping my problem, which is that 'Explorer.exe' crashes whenever I try to shutdown or reboot my system. The 'Explorer.exe - Not Responding' dialog comes up..then it'll wait for a couple seconds..then it will show the option of 'End Tasking of Explorer.exe' or 'Cancel'..and until I click one of the two options..it won't do anything. Help! ..thanks in advance.. P.S. Scanned my entire system with the apps located in my sig. below and turned up nothing..