Hi, I've got a bit of a strange problem. On one of our computers, pressing ctrl + alt + left/right/up/down will move the mouse pointer on the screen, but it's not clear which software makes this happen. It interferes with other software that uses these shortcuts. I've already tried disabling some software, such as WinKey and a Kensington mouse driver, but that didn't make a difference. It's happening on a Windows XP SP3 computer by the way. Does anyone have an idea of how to find the software that traps this shortcut? Suggestions for actual (types of) software that might be doing this are welcome too. Thanks!