As the title states, the control center (CC) often does not open or hangs on three seperate machines. 2 fully updated XP, and 1 fully update 2k machine. Note that this is the trial, but I would still like to get this resolved. I have been recommending NOD32 to those I do computer work for, and I'm a bit worried that they will run into this problem if they have purchased it. The two XP machines have all services running, and occasionally the CC will not open on startup. The win2k machines will not open up the CC at all. I have run into this problem before, and a reinstall fixes it. There are no error messages thrown, nothing in the event viewer, and definately no viruses or malware on the systems. Is there anything I can do to get this resolved without the reinstall? I have at least three computers I would like to use NOD32 on after the trial expires, but I want to make sure this problem can be fixed first. Aside from this, I'd just like to say great job on this product! EDIT: On demand scanning does not open either. nod32krn is up and running, no errors on hard drive.