Thanks for responses.
CJ, I ran MS upgrade assistant before download. No major problems found. MS updated video drivers
Yes I did check drivers are available and I've got them for the RME card. Just not sure about installing them without the RME card being seen at all. What do you think? Have posted and looked on RME forum which seems to suggest that is what you should do but I'm not certain.
aka, I'll see if there are bios updates for my Asus P5k. Great if they are still supporting it. Must say say Win 8 does feel snappier than xp :)
Off forum topic but wifi issues seems to be a common for Win 8 users.
Edit: saw "unknown device" in device manager. location was pci so assummed that must be the rme card. Updated the drivers for it and 1) card working 2) seems to have resolved the wifi problem.