Ok, so I'm at my wit's end with this one.
I work on a system which utilizes a video capture board plugged into the PCI Express bus on a Windows XP SP3 x86 machine. At one specific customer site we have an issue with this board. Their workflow is to use the machine during the day and log off at night. When they arrive back at the office in the morning they log back in, but the card does not function properly.
The manufacturer's low level utilities are unable to communicate with the board, but Windows does "see" it (via the Device Manager). I have not received much help from the manufacturer thus far, only that it is specific to this customer's environment, which I already know.
So, my question here is; does there exist any sort of OS setting which could cause this sort of behavior? I'm assuming the PCI-E bus is being shut down, put into a low power state, or something similar and that the board is not properly "waking up" when the user logs back in. I could be wrong of course.
I have checked the power options and the system is set to never go to sleep and never hibernate. Any thoughts, troubleshooting steps, or solutions will of course be much appreciated. Thanks in advance.