🚀 go-pugleaf

I'm trying to get a new multisync monitor to work on a powermac
4400/160, but it just goes into sleep mode as soon as the mac starts up.
If you force it to wake up (by pressing a button on the front panel) it
cycles on and off, with no picture on the screen.

Now, this monitor *does* work on an old performa 475 and switches
resolution with no problems. Similarly, the 4400 does work with the old
fixed frequency 14" monitor. It's just the combination of 4400 and new
monitor that doesn't work.

The mac adaptor supplied (it's got a vga connector) does not have any
switches and is marked 640x480/832x624/1024x768. These modes work with
the 475.

I have been in touch with the shop it came from, but they haven't yet
been able to sort it out. I've also spent 2 hours doing web/usenet
searches with no success, although there are similar problems which seem
to have cropped up with other people, especially with Sony monitors and
Tanzania motherboards :-(  (not necessarily together).

Any ideas ? apart from zapping PRAM and booting from CD, neither of
which help.

Chris.