My computers are driving me crazy!!!

I have been using a little Compaq - 250mhz Cyrix, 125 mb memory, 8 gig
HD. It works fine. Puts a nice image on the monitor screen. About
worthless for anything but e-mail and web browsing.

I just got my big gun back - my main computer - the one on which the
mother board burned a bit back - toast!!. The computer with the new
board installed ran  great in the shop. I saw the action of the shop's
mointor.

Got the big gun home, disconnected the little Compaq, connected the bug
gun, turned on the power ....... no picture!!!!!Nothing, Nada, Zip, Zilch.

I take the big gun over to the plasma TV (my buddies) hook the computer
up, switch to RGB, hit the boot button, and away it goes. Boots right
up, nice big Windows Logo, then Desktop on that huge TV screen.

Reconnected the little Compaq to my monitor, hit the boot button, and
Windows came right up, slick as a whistle.

So! Now I have a little Compaq which will run fine, and give a nice
image on my Monitor. And the Big computer works fine on the Plasma TV,
but the big computer will not make an image on the regualar monitor on
my desk.

So - it ain't the monitor - it works. but it won't work with my regular
computer. - the big gun.

Anybody got any ideas??? The new mother board is a ASRock P4i65G with
built in video controller. Video is not a separate board plugged into
the mother board.

This has got me totally mystified. It's like the computer and the
monitor have a "bad" going and just don't want to talk to each other.

HELP!

Please p-mail off list.

Thanks so much.

Regards,

John Rodgers
88 GL Driver