welcome to the wonderful world of Skyrim,,,,,,,lol, if you are not already aware, probably one of the buggy-est games ever, open a door,,,,crash,,,,,,,fast travel,,,,crash,,,,,,just walking around,,,crash and so on and so on, there are many, many guides on here and the net to try and help solve this, but don`t expect to permanently "FIX" the game, its just too bugged from the start, but you should be able to get it reasonably stable, i would first suggest ensure that your screen refresh rate is not too high to start with, it will create havoc problems otherwise (much stuff flying around can overload the game causing crashes as well, the intro prisoner cart video can look very interesting as well,,,,,lol). Be careful with some older mods as they may have problems with a "newer" version of Skyrim as well, check out Gopher`s video`s on YouTube for help as well, he has many mods as well on here. Get a stable game first then try introducing some mods, one at a time, testing as you go, otherwise it can be a nightmare trying to identify any breaker. Hope this info helps or at least points you in the right direction - simon