I have removed all DLC related equipment to try to figure out why I can't enter any casino (except The Tops, they don't frisk me anymore) after playing through the DLCs without the game freezing. The only thing I can't remove is the Big Mountain Transportalponder. I think this is the problem because its classified as a weapon yet is not removable. Anyone else having this problem? More importantly, can anyone else get into the casinos with it?

Try use this section:
http://www.gamesas.com/index.php?/forum/126-fallout-new-vegas-dlc-hardware-and-software-issues/

They'll help you.

Willdo, thanks.