hi all-

recently, my SE/30 has decided to start doing something a little strange
at boot.  when i first turn it on, it will come up with a bizarre
checkered pattern (more grey than black&white), and it won't chime at all.
i can hit the reboot button or power cycle the machine, but to no effect.
however, if i let it sit powered-up for about 3-5 minutes, it will
eventually chime and begin the boot process.

has anyone ever seen this before or happen to know what's wrong?

thanks.

colin