Firefox and XINE don't play nice. Help?

[Pike]

Okay peeps, I've google'd this and searched Ubuntu Forums and am not really getting any help, which leads me to believe that maybe this really can't be fixed, but you guys all seem to be a smart bunch so maybe it CAN be fixed!

Here's the deal: I'm running Kubuntu Linux 6.06 "Dapper". Watching a YouTube movie in Firefox or playing a flash game seems to have about a 50% chance of completely killing my sound. I usually notice this because I'll try to put on some music afterward (I use Amarok) and I'll get some message along the lines of "Xine was unable to initialize any audio-drivers". Also, system sounds/other program sounds quit working.

I used to think that the only way to fix this was by restarting X but recently I've discovered that completely killing Firefox seems to get the sound back as well.

Anyways, any ideas? I suppose it's more of an annoyance than a big problem but yeah, it does get irritating!