Recording Amensia with Fraps causing mouse sensitivity to sky rocket.

[Your Computer]

I only recall having that issue in stages that my computer had performance issues in (which were my own HUGE maps), but that was with FRAPS v3.3.*. I haven't tried recording my huge maps with v3.4.*, but custom stories like White Night didn't have that issue for me when i recorded with v3.4.* (haven't tried v3.3.* for White Night, though).

If you're recording at 60 FPS, i would recommend bringing it down to 30 FPS. This tends to be easier on the system, and it'll save you hard drive space too.