I searched a bit but couldnt find anything like my exact problem. It seems that it just crashes (and often) after I fast travel sometimes and I just figured it does it when I change the radio station and I usually change it foten because I cant stand Guitar Johnny or whatever... but it crashes right to desktop and says there's an error blah blah blah. I'm pretty sure I played a good bit without it crashing at all. I have like 30 hours into it on this PC. I got 60 hours into it on another PC with no problems. I'm decent when it comes to troubleshooting but far from a wizard so I can work wonders but I can follow directions well if they are laid out. Thanks in advance for any effort of help and thought!

Edit: Also it has framerate lag on the inventory tab of my Pip-Boy and I remember it once did not do that. Only the weapons and apparel section. Whenever I hot key select a weapon or change ammo type it chops for a second.

Windows 7 Home 64-bit
Intel Cure Duo E7500 @2.93GHz (2 CPUs)
2GB DDR2 RAM
NVIDIA GeForce GT 240