(adsbygoogle = window.adsbygoogle || []).push({}); so i got my new computer for xmas its a gaming computer and i havnt realy played any games on it as of yet so yesterday i went out and bought l4d2 i can be playing for anywhere between 2 mins to 45mins then the screen goes black and message will appear on my monitor saying there is no input signal the lights on the computer are still on and the sound is crashed it has happend multiple times and i have tryed with multiple games i have tryed diffrent game setings and nothing im loving l4d2 and realy wanto to play so hopefully some fellow pc gamers can give me a hand ?

im running on windows 7 and have a pacard bell iextreme

OS Name Microsoft Windows 7 Home Premium
Version 6.1.7600 Build 7600
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Name JAMES-PC
System Manufacturer Acer
System Model Aspire M5802/M3802
System Type x64-based PC
Processor Intel(R) Core(TM)2 Quad CPU Q8300 @ 2.50GHz, 2499 Mhz, 4 Core(s), 4 Logical Processor(s)
BIOS Version/Date American Megatrends Inc. P01-A0, 18/08/2009
SMBIOS Version 2.6
Windows Directory C:\Windows
System Directory C:\Windows\system32
Boot Device \Device\HarddiskVolume2
Locale United Kingdom
Hardware Abstraction Layer Version = "6.1.7600.16385"
User Name james-PC\james
Time Zone GMT Daylight Time
Installed Physical Memory (RAM) 6.00 GB
Total Physical Memory 6.00 GB
Available Physical Memory 4.31 GB
Total Virtual Memory 12.0 GB
Available Virtual Memory 10.0 GB
Page File Space 6.00 GB
Page File C:\pagefile.sys
Name NVIDIA GeForce GT 220
PNP Device ID PCI\VEN_10DE&EV_0A20&SUBSYS_2160174B&REV_A2\4&1654C62B&0&0008
Adapter Type GeForce GT 220, NVIDIA compatible
Adapter Description NVIDIA GeForce GT 220
Adapter RAM 1.00 GB (1,073,741,824 bytes)
Installed Drivers nvd3dumx.dll,nvwgf2umx.dll,nvwgf2umx.dll,nvd3dum,nvwgf2um,nvwgf2um
Driver Version 8.17.11.9745
INF File oem16.inf (Section011 section)
Color Planes Not Available
Color Table Entries 4294967296
Resolution 1920 x 1080 x 60 hertz
Bits/Pixel 32
Memory Address 0xFD000000-0xFE9FFFFF
Memory Address 0xD0000000-0xDFFFFFFF
Memory Address 0xCE000000-0xDFFFFFFF
I/O Port 0x0000DC00-0x0000DC7F
IRQ Channel IRQ 16
I/O Port 0x000003B0-0x000003BB
I/O Port 0x000003C0-0x000003DF
Memory Address 0xA0000-0xBFFFF
Driver c:\windows\system32\drivers\nvlddmkm.sys (8.17.11.9745, 13.17 MB (13,807,976 bytes), 31/05/2010 21:45)

Could be your graphics card. Go to nvidia.com to download the latest drivers

just get a dam new gfx card lol. pop that shit in and u good to go.