Go to your rage folder then to the base folder!
Right click on the default.cfg file in there > Copy>Paste it in the same folder>Rename it as Rageconfig leave the extension.cfg on there>Save it>copy a config file you think would be good for your system ,from these forums>Delete all the contents in the new Rageconfig.cfg file>Paste in the newly renamed Rageconfig.cfg file and Save it!! Let me know if this works for you guys
My system specs are :
Amd Athlon x2 250 3.2ghz
AMD ATI 5670 1gb ddr5
6gb of ram
Win 7 64 bit