Monitor won't wake up !! -- help fast --

After putting my system to Standby Mode...

I turn it on again, but the monitor does NOT wake up!

The light on it goes green for a few seconds, then it just
says "Check signal cable...", and nothing else happens...

I know it's NOT a monitor problem.

I've tried several different good monitors (all CRTs, including this one).
They all wake up fine on other computers when using standby mode.

The PC sounds like everything is powering back up like normal...
But the monitor refuses to turn on

My PC:

ASUS Striker Extreme (latest bios)
Intel Core2Duo E6850
XFX 8800 GTX XXX
2GB XMS2-6400 5-5-5-12 Xtreme 800MHz
Corsair HX Modular PSU 620W
Seagate ST3250620NS BarracudaES 250GB 7200rpm 16MB SATA2
Windows XP Professional x64 SP2

It's incredibly annoying.

I want to be able to just put the PC to standby so I don't lose the
data I'm working with and stuff, when I go to sleep for example...

Now the only options I have is either leave it running (which is retarded to do if it just
sits there and does nothing), or turn it off completely every time (which I don't want to).

I've tried searching around - found nothing useful ...

PLEASE help!

I would really appreciate it...!

"Does this monitor behave properly on another computer?"

Yep.

"Does another monitor behave properly on this computer?"

Nope.

It's not a problem with the monitor... doesn't matter which I use.

Yeah, obviously it has a HDD.

But what I mean is, if you have some programs up (whatever it may be) and running, and you don't want to close them down and shut the PC off, and you don't want to leave the PC on while you are sleeping just to be able to continue later when you wake up, then it's very convenient to simply put it in Standby Mode so it almost shuts everything off but keeps everything as it is and when you wake the PC up again, you don't have to load Windows and wait for everything to start up... instead, you get what you had - instantly.

What, have you never tried Standby?