My old MX 700 is so tacky it is not useable. Anyone have an old back lying around? I think and mx 500 back would fit too.I sent it to URC and they want $100 flat for repair-- sounds a little ridiculous to me.

Have you tried taking the back off and cleaning it? I've done this several times to mine over the years.

I've tried soap and water with a sponge, windex, goo gone, and they all seem work pretty well.

Should at least get your by until you are ready to replace the remote outright.

when I tried to clean it I made it worse!

What did you use and if you can't get it to not be tacky, why don't you call URC to get a new back?

I'm pretty sure oil-based substances cause this and skin oil isn't out of the lists. Residue from foods that are oily or greasy should never get onto the remote.

MX-500, MX-600, MX-650, MX-700, MX-800, MX-850 backs should all fit. Except very early MX-500 ones that didn't have the serial port bump.

I called URC many times but could never wait long enough for someone to get on the phone. I eventually sent it back with a note-- "Can you either clean or replace this back?" 3 months later after I called many times to find out what was up, they called me back and said it was $100 to repair-- wouldn't even look at it first-- I said send it back and they did-- URC was worthless on this one.

I'll take Daniel's suggestion-- anyone have an MX-500, MX-600, MX-650, MX-700, MX-800, MX-850 back?

Check amazon for the NXG verison of the mx-500, about $39 with shipping:

[Link: amazon.com]

I may have a fully working MX-700 (its the B&K SR 10.1 which is the same) in great condition. make an offer fkcfkc@gmail.com

I also have an extra MX-850. Make an offer.