After some further work this weekend I have managed to recreate the problem successfully several times now. The problem occurs only on a Shutdown and Restart, not on a Restart (4 restarts in a row and no problems). The recovery action has to be a cold (wait 5 mins with the power unplugged) restart, removing the card during the power down, if the card is left in the machine (as in power down, un plug from mains power, wait 5 mins, plug in restart) the fault still occurs - removing the card seems to be the key which suggests something is being retained in the card that doesn't clear properly unless its pulled from the machine.
The error code reported by windows device manager is a Code 20 - the drivers for this device are not installed. I checked the PCI bus address is the same when working and not working (7) . In the Device Manager Multimedia Controller properties page within the details Tab I have noted a change between the two states. In the 'Working state' the Hardware IDs listed are:
In the fault state the Hardware IDs listed are:
Could this be the cause of the fault? Is the hardware ID not being reported properly when the reboot occurs? The Manufacturer field is also not populated on reboot and the type is reported as a 'Multimedia Controller' instead of the 'Hauppauge Win TV_HVR-2200 (8940)HVR'
Hoping Haupppauge can resolve this as the card is great when it works - picture quality under windows 7 64bit is perfect even in a weak signal area.