Weird error think its java related-Not sure tho

Ok so i load up ultra mix and i go to add a song the song appears on the playlists just fine. but when i go to click play i get this this. it crashes to my desktop and the .exe is still running in the back ground so i have to exit it manually.
Also every now and then it will play the first tack but when i go to mix the second it does the same thing.

Im running Windows XP SP 2
I have a creative sb audigy 2 sound card

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