A:AnswerI'm not sure if this answer applies to your exact situation but I was going through the same situation with not getting a full screen. I had to change a setting on my cable box to output 16.9 format instead of the 4.3 format and it made the image full screen.
A:AnswerNo, I don't have the problem you described. If this happens with the built in tuner as a source you may have a bad unit. If it's happening with a single external source only (cable or Sat box, DVD for example) your problem is likely there.