Forum:Glitching problem

I recently uploaded 4 of the DLCs (Broken Steel, Point Lookout, Operation Anchorage and The Pitt), and suddenly the game is glitching quite frequently. I can't fast-travel to Agatha's house without it freezing, and twice in a row, it has frozen in mid-battle. What is going on? Should I maybe not have uploaded all 4 DLCs immediately?

PS. When I first installed Operation/The Pitt, I accidentally loaded the French version instead of the English version. I went back and corrected this, but the French mission objective keeps popping up whenever I load a game. Perhaps this might be a contributing factor to the glitches?