The gray screen with the Radius Logo is thrown up by all the Radius Cards I've used. It's a pre-boot splash screen.

When I have some time, I'll go through the magic shoe boxen to find some more Pivot Cards for comparison. Maybe I've got a newer ROM rev.

edit: just checked, I've got exactly the Same ROM on the same card you have. Knock your System back to the 7.5 or 7.5.1 level and be happy to have something besides the crappy built in vampire video of the IIci!