--- Clark Martin <[EMAIL PROTECTED]> wrote:
Try a PRAM zap. The monitor size settings are stored there and if it
gets corrupt it might munge things.
Try booting off a CD-ROM. From there you could try changing video resolution using the control panel on the Harddisk.
I think I have found the problem. I zapped the PRAM, as Clark suggested, with the 7600 hooked up to the NEC monitor, using an adapter. No change. I then hooked up the Multiple Scan 20 monitor (no adapter needed), zapped the PRAM, and I had many choices. I also noticed that the control panel said "Multiple Scan Display"). I hooked up the NEC again, and it looked good. I decided to restart to see what would happen. I was back to 640x480 only, and the control panel simply said "Display".
I think the adapter to go from the 7600's DB-15 to the NEC's HD-15 is the problem. It's a simple one, with no DIP switches to set. Do you think a better adapter would solve the problem?
Yes it should. I'm just surprised that the one you have only does 640x480. It might be one that dates back to the dark ages of Mac when a few companies made 640x480 VGA monitors that would work with the Mac. They were single resolution monitors so the adapter probably appeared as just a 640x480.
--
Clark Martin
Redwood City, CA, USA
Macintosh / Internet Consulting
"I'm a designated driver on the Information Super Highway"
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