Hi, whenever I connect computer A (win XP) to Computer B (windows 7) the RDC works perfectly. However when I disconnect, and physically return to computer B, the screens are black. I try to move the mouse, ctrl+alt+delete, etc. and nothing. The computer is still running but seems like I can't wake the display. I have to do a hard shutdown on computer B to use it. Any Ideas on what is wrong here? Any Ideas on what to try to correct this?