I've tried using Fraps with Combat Arms, for some reason it's not working. I can't figure it out. But I do have Camtasia. What settings do you use when recording with Camtasia on Combat Arms?
Solution to Fraps problem:
Open up Fraps AFTER you run Combat Arms, so simply minimize Combat Arms run it.
OR
Open up Fraps before hand, and AFTER you're in-game, select your screen.
Two rumored fixes, I'm not sure which or if they work.
I use the default settings, I suggest playing around with the settings yourself.
Recording 30 FPS may work better for some, and recording 25 FPS may be better for another.
(That was an example)
So play around with it, until you're satisfied.