Thanks for all the comments guys, interesting stuff.
I was sure very surprised to see any kind of detail on the disk, so it is possibly artifacts, as I too do not believe that Uranus shows any surface detail.
I did as John suggested and looked at the green channel and there is something there, artifact, belts etc.
Interestingly enough it appears that the poles of Uranus are not pointing at the sun at the moment and we have a nice equatorial plane view. I used the JPL simulator to find that out. See here:
http://space.jpl.nasa.gov/
or for Uranus today:
http://space.jpl.nasa.gov/cgi-bin/ws...rbs=1&showsc=1