I'm having two separate bugs that I think may be related. One is that once I boot up, my CDRW/DVD-ROM drive only stays available for a few minutes, then it becomes "not accessible". The other problem is that when I hit Ctrl+Alt+Delete and select Task Manager (running WinXP), the box pops up but without the tabs along the top for applications, processes, etc. I run AVG anti-virus per the topic in the Tech Support forum for "Removing Malware...", and the last couple times it says that two files were "Changed". One was the Shell32.dll file; I don't recall the other. I'm afraid that there is malfeasance afoot. Any insights?