Realplay crashes on opening Deutsche Welle video

 (Standalone) Realplayer 10 (package "realplay" from the Canonical repository) crashes on opening video streams from Deutsche Welle. The two videos I have tried play fine using the RealPlayer plugin in Firefox.

I was able to open a video from another source without any problem (http://mediaarchive.ksc.nasa.gov//dynavideo/dyna_smil.cfm?mediaid=30154&alang=en&useMP4=false&filename=vstream1.ksc.nasa.gov/odv/ma/STS115/ksc_092206_115_overview&format=rm

The videos that failed both come from links on http://www.dw-world.de/dw/0,2142,4753,00.html

Here is what happens when I open one of the videos (Kultur.21) in a terminal:

robert@mr-rusty:~/.mozilla/firefox$ realplay rtsp://a1175.v143424.c14342.g.vr.akamaistream.net/ondemand/7/1175/14342/v0001/ondemand.dw-world.de/dwtv_video/kg/kg20060923.rm
The program 'realplay.bin' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadMatch (invalid parameter attributes)'.
  (Details: serial 38 error_code 8 request_code 140 minor_code 13)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the --sync command line
   option to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)