headless server...

[bq510 at scn.org]

> well to be exact, the situation looks like this: when the
> monitor is plugged into the box (it doesn't matter wheather 
> it's on or off) everything runs fine (there's the 
> standard "short beep" and the machine boots normaly). 

I think your solution lies there.  With the thing running OK 
with the monitor turned off, measure the voltages on the 
cable's lines and then wire up a dummy cable (or just 
connector) to simulate the turned-off monitor.  If your lucky (I 
I suspect you will be), you'll just need to wire a pin or two to 
ground, but maybe to 5 volts.  You can probably get access 
to the "pins" with the case open somewhere between the 
real pins and the motherboard.  Good
luck.