I've been playing for the past couple hours (experiencing the NPC lag bug the entire time) and made it to Primm. When I got there the casino had numerous NPC's and the lag got intolerable, so i quicksaved (F5) and exited out of frustration. Now I go back to load the game and I find out my quick save never took place. It only recognizes a quick save I made in goodsprings 30 minutes into the game. It seems like on top of paying 50 dollars to be a beta tester and chugging my way through hours of lag-ridden gameplay, I now have lost hours to a quick save glitch. Is this quick save glitch a problem many people are having and is there a definite fix? Also, are refunds being offered?

Yeah the quick save is broke. Having the same issue.

Same here, Im ready to punch somebody.
Has there been any solution for this?

yes both the quick save and the auto save are broken.

Ok not really a fix if you played after you realized you lost your save, but there is a way if you exit right away:/ go to my document/My games/falloutNV/saves and there, you will find .bak files. Copy them somewhere else, Remove the .bak extantion and copy them back in saves file.

Its only work if you dint save after the save got erased.

there are a few solutions already posted.

http://www.gamesas.com/index.php?/topic/1122859-attention-saves-arent-missing/