Gmac not starting on steam

Hi,

I just finished downloading gmod (and cs:s) and when I try to open gmod it goes to a black screen and quits it self. I think its graphics card related since my graphics isnt good enough to play cs.
Afterwards when it comes up with problem report, it dosn’t say a thing about gmod it looks like steam is trying to open hl2. osx which im guessing is half life.

If my system specs are needed ask.

Thanks

If your graphics card cannot support CS:S, then there is a pretty good chance it won’t work for Garry’s Mod either. Garry’s Mod system requirements are a lot higher than CS:S

Your system specs are required

OSX is now called Half-Life? Cool

here are my specs:

Hardware Overview:

Model Name: iMac
Model Identifier: iMac6,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.33 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 4 MB
Memory: 4 GB
Bus Speed: 667 MHz
Boot ROM Version: IM61.0093.B07
SMC Version (system): 1.10f3
Serial Number (system): W864818YVGP
Hardware UUID: 00000000-0000-1000-8000-0017F2C6BEA3

graphics card

NVIDIA GeForce 7600 GT:

Chipset Model: NVIDIA GeForce 7600 GT
Type: GPU
Bus: PCIe
PCIe Lane Width: x16
VRAM (Total): 256 MB
Vendor: NVIDIA (0x10de)
Device ID: 0x0391
Revision ID: 0x00a1
ROM Revision: 3467
Displays:
iMac:
Resolution: 1920 x 1200
Pixel Depth: 32-Bit Color (ARGB8888)
Main Display: Yes
Mirror: Off
Online: Yes
Built-In: Yes
Display Connector:
Status: No Display Connected

[editline]04:46PM[/editline]

oh and it says "hl2. osx has quit unexpectedly

[editline]04:49PM[/editline]

oh i mean “hl2.osx has quit enexpectedly”