CFS3 Stuttering, why???

I used to have CFS3 working fine. About a week ago, I did my usual reinstall to get rid of some 3rd-party add-ons. I went into program files and deleted the CFS3 folder of course. Well, since I reinstalled again, I have been having some problems. CFS3 will run fine for about 5 minutes and then for about 30 second periods will stutter they badly. Everything will freeze up, no keyboard or joystick command will function, and the sounds that were playing that second will keep repeating. Same thing happens at display settings of 5 and 2. What should I do?
My system specifications are:
Operating system: Windows XP Professional
Processer: GenuineIntel 1695Mhz
Memory: 768.50 MB
Video Card: All-in-wonder RADEON 7500
CFS Version: 3.1
Ambassador ???
My system specifications are:
Operating system: Windows XP Professional
Processer: GenuineIntel 1695Mhz
Memory: 768.50 MB
Video Card: All-in-wonder RADEON 7500
CFS Version: 3.1
Ambassador ???