I'm using Steam and when I leave the casino in Primm and fight teh gang outside I get a crash each time. Not sure if it's quicksave but there's an autosave it loads from. I can go the other way and see if it doesnt happen again but thought I should say something since it's happened more than once.

Probably 95% of time I enter Primm I crash. Only way I found to get around it was to delete my autosave then enter. Kind of annoying but you might try that. I just crashed less then 5min ago trying to enter Primm myself so I need to try and delte my autosaves again.

I just installed the game today (PC) and after 6 hours of play and messing around with the quests at Mojave Outpost, now when I try to go back to Primm to finish up the quests and tell the NCR lieutenant that a squad is coming (after having gone to Nipton etc) the game crashes every time I get close to Primm. If I fast-travel to Primm, I take about 5 steps and it crashes, every time. Quite annoying to say the least. Everything worked fine in Primm when you first go there, but now I can't get within 500 meters or it will crash.

This is a Bethesda game. Corrupted saves just happen. More than just one save position is always needed. Always.