Woo Hoo!!...I have some good news! This software update has fixed my lock up problems and it updated with no surprises.
Why do i think its been fixed?
1)I ran my existing program (contains 45 devices, 2 zones, 3 MRF-300s and still growing) with no problems after a normal download. Previously i would have to open the back pull out the battery and hit a reset button after every download...if i didn't a bit of scrolling thru the pages and it would lock up the remote.
2) I tried downloading 2 old programs which i could guarantee would lock up the remote after a bit of scrolling following a download and no reset button would ever fix these programs. Now they work first go. (fyi In one program i had just added a new device and in the second i had added heaps of new sound files)
So what can i say? I'm a happy chap i really believe URC has finally fixed at least my lockup problems.