When I press right, left, up or down on the round five way circular button it sometimes, but with increasing regularity, initiates a selection. Just as if I had pressed the center of the round button to make a selection.

The round button is free in its movement. I have taken the MX-700 apart and cleaned it - it was clean on the inside. There were no visible problems.

I have reprogramed the button -- same results.

This behavior is exhibeted on different components whenever the use of the round button is called for.

Has anyone experienced this behavior? Any ideas on how to correct the problem?

I just got the MX-700 back from URC last summer after they fixed a problem with the backlight.

Thanks for any help.