The little barter menu that comes up when you use the computer terminal in your presidential suite in the Lucky 38 doesn't work right. I can't select items to buy, or scroll the seller's inventory.

I encountered this too, and found a solution, sort of. If you move the mouse across the items in either menu, you should see the the box flicker. You can then select things in the menu using the keyboard to select and buy items. You have to get the box to flicker every time you move an item to one side or the other, though.

I have exactly the same problem, too.

Things seem to be showing wrong. I'm able to do both, but only if I move my mouse over to the right really far. Mind you, I'm on a 16:9 monitor; I can see how things would really be difficult on a 4:3 aspect ratio.

Chock this up as another "confirmed" bug.