Dyutiman, I won't agree with your assumption that this is a satellite issue.Remote functions are NOT and CANNOT be satellite dependent.I just tried and checked it on my STB. When I changed the remote type to compact , OK button will not work as in your case.You NEED to set remote to NORMAL and if you really need to set it compact, you should get yourself a compact remote with additional buttons.Your issue will never be solved no matter how long you wait or call any technician if you are not going to change the remote type.
By the way, I can't see what does it has to do with resolution and the remote type.Must say both your assumptions are wrong.