SONY REAR PROJECTION KP-51DS1U Bought November 2002. Working perfectly until tonight when for no apparent reason nor warning remote control stopped working the set....- YES I HAVE CHECKED THE BATTERIES. Set works perfectly using the manual controls, picture and sound o.k., but remote refusing to work anything, sound, channel change, standby, menu ....anything.....very strange. The remote does operate the compatible Sony VRC perfectly. Anyone help.