The last time I had an issue with IFE on UA was an NRT-SEA flight. The menu items were all moved over an inch or two to the right, meaning I couldn't select a bunch of the options. Told the FA, so they could write it up (or suggest a solution), but ended up moving to the seat next to me (from the middle, next to my wife in the window, to the empty aisle seat), where it worked. When I told the crew about the issue, and they didn't have a solution, I said not a big deal, I would just move over.
A couple of hours later, the purser came by with a Skykit (which I never asked for or even suggested) which was worth a $200 TVC.