we have three ThinkCentre A57 Type: 9702 Model: 8FG BIOS Version 51KT54A with Windows XP SP3. One Printer is installed via USB and mouse/keyboard via USB. After Windows XP turns in Standby Mode and the Printer is powered on you can not reactivate the Thinkcentre with the usb mouse, only by keyboard. After you reactivate the thinkcentre by keyboard you can still not use the usb mouse or the usb printer. It seams like the usb port is dead. When you restart the Thinkcentre all works fine. Can anybody help me with this problem ?