bought this computer 6 months ago

Gateway
GT5056
AMD 64 X2 dual
core processor 3800+
2.00 GHz 1.00GB RAM

it came with a Geforce 6100 graphic card.

everytime i run my computer for a long time, and i wanted to play some games, the game starts to go faster and faster and faster. i have to reboot my computer inorder to get it to normal speed.
... ummm in my command prompt my ping times are also sometimes in the 122 million ms range. i replaced my ethernet cable modem and network card. i am a computer noob and have no idea what it is, but i kow im very upset about it cuz i love my halo and dont like restarting all the time. i would appreciate any help in this. i put in a 7900 gt last night tho lol looks good when it works...plz help me umm i have tried numerous other thing turning stuff off in my bios and stuf if u have any questions or suggestion plz ask i called gateway and they said its a 3rd party problem call bungie or send my computer in for like 5 weeks... i dont think so dude lol anywasy thx

Dualcore optimiser,hotfix and AMD driver installed?

Tt Lanfire
MSI K8N Diamond
X2 4600+@234x12=2.8ghz 1:1
1GB PC3200/4400
OCZ Powerstream 520w
6600GT
WDCaviar 160gb sata x2

Check your boot.ini for usepmtimer.

Should look a little like this....

[boot loader]
timeout=0
default=multi(0)disk(0)rdisk(0)partition(1)\WINDOWS
[operating systems]
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="C Drive (Microsoft Windows XP)" /fastdetect /usepmtimer

Tt Lanfire
MSI K8N Diamond
X2 4600+@234x12=2.8ghz 1:1
1GB PC3200/4400
OCZ Powerstream 520w
6600GT
WDCaviar 160gb sata x2

"i wanted to play some games,....."

So this occurence is not common to games - what game(s) are impacted?

Try to enable vsync to see if that helps...

TMP-Man

Asus P5P800-SE
P4 506 @ 4009Mhz 1.3625v
Thermaltake CLP0024 w/ 1700RPM 92MM AS5
2GB OCZ 2-3-2-5 DDR400 PAT
120GB/300GB 7200RPM HD
Leadtek 7600GT AGP 590/1600 VF700 ALCU AS5

Lord of the rings, return of the king, EA games, is running fast on my new dual core AMD 4400+, the above answers are rather complex, any alternatives?

Andy Morrell