Forum:Level up glitch that I got in Fallout 3 went over to NV as well

I was playing Fallout 3 again and I got a glitch when I was trying to level up that did not let me select a perk. It "grayed out" the "Done X) option leaving no ability to continue the game. I got NV today and the first time I got to level up this glitch happened again!  I deleted my whole Fallout 3 file off the memory of my 360.  I even deleted and started over my NV game.  I happened again!  Has anyone come across this glitch?  Is there anyway to fix this or cannot I not play the fallout series on my 360 ever?  Very weird this happened in a different game.  Is it my system?  Seems to be working fine otherwise.  Any help would be appreciated.  Thanks.