I've got a strange problem with my 2-year old MX-890. I've not changed the CCP file for the MX-890, but the remote has started behaving erratically. As an example some buttons work as expected ("down" and "right" work fine) on all devices but other similar buttons such as "up" on all devices sends the wrong command and pressing the "up" button always highlights the soft button in the lower left corner of the LCD screen on all devices.

I've reset the remote to factory defaults, reinstalled my setup, removed the battery etc. created a brand new small test version of my setup and installed that to see if my original CCP file was somehow corrupted etc.. That is, all sorts of typical troubleshooting steps. I'm out of ideas. It seems as if something has been corrupted in the remote internals, but I am at a loss.

Any ideas? My thanks in advance.