call of duty 4: modern warfare error

the single player loads and plays just fine maybe its just me but i think i see improved graphics (moving up from XP)

however, when trying to run the multiplayer .exe it crashes instantly with a blank, black screen! no notice is given until you alt+crtl+del and see that windows 7 has said immp.exe has stopped working. you can tell it crashes instantly since when it gives you the blank screen most the time the cursor is the blue spinny icon, but if you hover around the middle it goes back to the white mouse pointer.

any idea how to fix this? it gives me no error report on what failed and when. all drivers are upto date, tried running the compatibility on xp sp2 and vista, neither worked...

edit: device manager has found an nvidia geforce raid device error, it cant find a driver for it and i cant seem to find one on the net, but i dont think this is my issue since cod5 runs fine on single and muliplayer..

And your graphics card is....

its a 8600gt

Hey guys thought instead of opening another thread i would post in this one...Dont mean to hijack the thread..

Whenever i go install cod4 on my windows 7 o/s just comes up with error 1628 and doesnt install.

Specs of my computer are

AMD 3800+ X2
1 gig of ddr
DFI nf4 Expert motherboard
nvidia 7600gt

If anyone could help out would be greatly appreciated..

Cheers Sp4nKy

I've got the same error message...

Specs:
Intel Core i7 920
3GB Patriot 1600MHz DDR3
Gigabyte GA-EX58-UD5 Mobo
ATi Radeon 4870X2 2GB GDDR5

Fixed my problem did a system restore to when i first got win7 up and running..
Something that i have installed has stuffed around with my Installshield versions and cod4 wouldnt run it..

programs that could have done it are

Adobe Reader
Battlefield 2
Winamp

Installed cod 5 when i first got win7 up and running and worked... tried to uninstall it before i did the system restore and same error appeared...

So for anyone that has this problem there is one solution.... Format and install again or use system restore if you still have volume shadow copy started in your services.

Cheers

I have same problem,singleplayer run fine but when try multiplayer screen go black.
And im using Ati radeon 4850 videocard.

hey ive the same problem ,and i have one ATI Radeon HD 4850 too. PLS HELP

edit: tested it with another graphics card (Geforce 8800GT) same problem, and when i start the multiplayer exe in windows vista/XP mode i get the error: Error during initalization: Couldnt load filesyscheck.cfg Make sure that call of duty is run from the correct folder.

weird..maybe because i installed cod 4 not at C:/ ??

I have some graphic problems in some maps of cod4 multi. My graphic card is 8600 gt and i have installed nvidia drivers with windows update.
My OS is windows 7 64bit

SOLUTION FOR THE BLACK SCREEN !!

Put in your Sound AND a Microphone together at the front or back of your computer.

Now start the multiplayer.exe

---> works