Dear Curious,
Thanks for your quick reply.
I do not think the contents of "1280x720" and "720x1280" files were incorrect. These two same resolution files were installed on Galaxy S3 with ICS 4.0.4 and works fine. So, the two "1280x720" and "720x1280" resolution files should be the right ones. But when installed on Galaxy S3 with Jelly Bean 4.1.1, the Menu selection button does not appear on the screen, hence unable to switch function.
If the "1280x720" and "720x1280" resolution files have been renamed by mistake, it should have the same problem, but it works fine with ICS 4.0.4. Strange, but that is the dilemma.
Any further possible points on the culprit will be greatly appreciated.
Thanks/Regards.