I have the same card and it doesn't show those symptoms. Perhaps you should try and limit the amount of memory on the HC+8 to 4 megs if you have the full 8 installed. I am pretty sure the 4 megs of ram on your A2630 falls inside the 8 megs of Zorro address space. You might try it with no more than 8 megs total between both cards just to see if it helps.
Good Luck,
Jeff
