Ok, I don't know what I did but the hardware button for CTRL-ALT-DEL is not working. Anyone else here have this issue on their TC4400? I updated the bios, chipset, etc. So I don't know what else is wrong. I have called HP support and when they took their DEMO TC4400 to see what I was talking about, they didn't have an answer as well. As a matter of fact, the support tech even laughed and said, "Well, what do you know, mine doesn't work as well" Needless to say, I don't seem to see this issue anywhere on any forum and this place is my only hope considering it's the only forum I found that actually talks about the TC4400. Please help!!