I have a MX-5000 that started having very slow page transitions.  Press a page button adn it takes 4 seconds for the page to creep into place.  Once there, the buttons respnose is normal.  Any ideas how to fix?  I tried a factory reset, the factory default transitions behave the same way.  When in the setup screen, changes between option screens work normally FWIW.  When in operating mode, teh transitions crawl.  I tried turning off WiFi in setup, no difference.

Any idea how to fix?  What's that button for in the battery compartment next to the USB port?  It reboots the remote, but pulling the battery will do the same thing, so why put a button there unless it's for something else?