No. My windows XP computer does not recognize the mx 6000 at all, so I decided to try my newer windows 7 computer, which does not recognize any of the other remotes or the MSC 400, and hay presto, the mx 6000 was recognised and I was able to download some work that was done.
Now I am confused even more. Did URC change something on the newer mx 6000s or am I just showing my ignorance?