MSTS Crashes (An educational)

Took me a while to start on this..FRAPS was being god-awful and I couldn't find a good video converter. Finally found one that keeps the quality good so I used it and now there's a video on YouTube. The file sizes of all the AVI clips that would be used in this video were around 3GB. After converting (and compressing in a way with minimal quality loss) to WMV it's about 54.5MB. WMM doesn't like AVI files either nor does it have Fraps's codec in order to work properly. Fraps apparently killed the framerates here more than they did in the past...I later found out Norton Antivirus was running about an hour later (it checks every single file in the system including ones associated with MSTS). I got most of the add-ons from http://www.trainsim.com/ and http://www.klwtrainsim.ne1.net/ Any questions not answered by other uploaders? Ask them here and I'll try to the best of my knowledge to answer them. Media: Music- Kirby Air Ride: Rowdy Charge Tank Kirby Air Ride: Item bounce Software- Microsoft Train Simulator Windows Movie Maker Fraps (yes it's the full version of Fraps which I bought!)