Looking for info on old SuperMac video board

(This is a follow-up to an earlier posting, but with some corrections and further information.) I recently acquired an old Macintosh II. In it was an older SuperMac video board. Based on the pictures on Radius' web site, I have concluded that this is a Spectrum/8 (original), Part # STD9411, Assy # 1002689-0001. The label on the ROM reads: SUPERMAC TECH SPECTRUM D6 1002690-B 1986 According to Newer`s SlotInfo program, The card revision is 1.0B9 and has a part number of VGB-1. Per Radius' FAQ, I have tried holding down the OPTION key while booting, but never got the "round robin" video mode selection. I have also tried running SuperVideo 2.7.5 which tells me I must have ROM version 1.9 or later in order to select a monitor. Currently, the card seems to be "stuck" in what I assume is the default mode of 1016x768. So, does anyone have: 1) Info on how to get the card into other modes (pref 640x480 for now). 2) Setup software for this old a card. 3) Any info on support monitor resolutions and frequencies? Thanks in advance... <<<John>>>