Gears of War lagging

When I installed this game and run it was working like a charm. But when I run this game another day it was lagging. Whatz the problem?
Answer #1
Do you have only this game running on the pc ? i mean , arent there any another programs started when u play ? TRy to close everything and go and try ur game
Answer #2
Try closing all resources down and also get the latest patch for the game and for your video card.
I hear d their is a new patch coming to fix online issues so anticipate it.
http://www.fileplanet.com/182779/180000/fileinfo/Gears-of-War-PC-Patch
Answer #3
I updated this game two times and result was the same…I used BAT`s crack.
Answer #4
Your PC specifications would be helpfull…
Answer #5
Game works great after installation… My PC Athlon 1,67 Ghz, 1 GB RAM, ATI Radeon X1650 512 DDR2 RAM.