Anyone notice how after a pause in a standard client task sequence, when the Running Action: Executing sysprep step begins, the process does not finish until one clicks on the Installing progress window, and immediately afterwards, the system reboots and begins the capture? Can anyone explain that to me?
Yes, it's a known bug, and I have only seen it when running sysprep on Windows XP via the Task Sequence.
The workaround is to create a AutoIT script (that you must compile to an .exe) that moves the mouse every other minute or so. You start that script/app before the sysprep action via the task sequence.