Call of Duty 4 PROBLEM

i have big problem with game...
first i want to say that i have laptop Acer Aspire 5732ZG (2.1 intel dual, 3 GB ram ATI mobility radeon 4570) with windows 7 ultimate on it... i installed the game on the laptop, and everything else (patching, bla bla...) but i cant start it up....
when i start it up...i got black screen and game crashes... i got this error:

Problem signature:
Problem Event Name: APPCRASH
Application Name: iw3mp.exe
Application Version: 0.0.0.0
Application Timestamp: 47043f08
Fault Module Name: iw3mp.exe
Fault Module Version: 0.0.0.0
Fault Module Timestamp: 47043f08
Exception Code: c0000005
Exception Offset: 00276555
OS Version: 6.1.7600.2.0.0.256.1
Locale ID: 9242
Additional Information 1: 0a9e
Additional Information 2: 0a9e372d3b4ad19135b953a78882e789
Additional Information 3: 0a9e
Additional Information 4: 0a9e372d3b4ad19135b953a78882e789

i tryed all compatibility modes but i got problem over and over again....
plz some 1 help me thx alot

At first glance I would say it is due to your video card or old video driver, try updating it.

Since I know very little to nothing about Ati/AMD, I am going to suggest checking the Game requirements so see if you meet or supersede it with your system specs

“Required (min) Specs”

• CPU: Intel(R) Pentium(R) 4 2.4 GHz or AMD(R) Athlon(TM) 64 2800+ processor or any 1.8Ghz Dual Core Processor or better supported
• RAM: 512MB RAM (768MB for Windows Vista)
• Harddrive: 8GB of free hard drive space
• Video card (generic): NVIDIA(R) Geforce(TM) 6600 or better or ATI(R) Radeon(R) 9800Pro or better

“Recommended Specs”

• CPU: 2.4 GHz dual core or better is recommended
• RAM: 1GB for XP; 2GB for Vista is recommended
• Harddrive: 8GB of free hard drive space
• Video card: 3.0 Shader Support recommended. Nvidia Geforce 7800 or better or ATI Radeon X1800 or better

thx ill try...but that happend to me when i want to install CoD2...:S
but i completed CoD5...without problems...

lol..i just insert my headphones and mic and everything works =P