Well, that OGG file worked OK (i'm using W2K, jreceiver 0.2.3, Rioplay 0.2.9alpha2). That file was encoded with OGG version 1.0 RC3.
I had used the latest OGG version from the website which just shows version 1.0. (maybe this isn't the latest version?)

Looks like i need to play around some more at the weekend to see if its Jreceiver/Rioplay or the OGG version that has a problem.

Thanks for the file.

bill