Issue with sound output changing

I've got an ISBoxer character set that includes 8 windows. A problem has come up, that seems specific to EQ, that maybe you guys can help with. I realize this isn't ISBoxer specific, but you guys are very knowledgeable. Thank you in advance.

All 8 load, EQ No-patch. On the 6th screen, after I log-in, as soon as I hit "Play Everquest" button, from server select, any sound immediatly gets defaulted to my laptops speakers. So if I had a TV show, or music, or whatever playing, it immediatly, only as soon as I hit the Play EQ button, starts going through my laptop built in speakers.

Along with this, when I try and load Teamspeak, after this problem has occurred, I get errors that it can not detect my output or input device.

To correct this issue, in Windows 7 I have to go into "Playback Devices", switch the default playback device to something else, then switch it back to Speakers/Headphones. I figure there is some kind of audio setting in EQ that is taking over, and changing things.

Anyone have any idea of what is going on?

Thanks again.

Definitely has to be something with my audio driver, which I thought was up to date. Will try and update to see if it changes anything.

Switching from HDMI sound output through monitor speakers, to speakers/headphones output, which are headphones and/or speakers/mics hooked into the jacks on the side of the laptop, the show I was watching started having extreme video lag. Switch to the HDMI output, and the shows video clears right up. Switch back to the speakers/headphones output, and the show starts lagging like crazy and then after a few seconds the show shuts down saying WMP encountered an error.

Totally weird problem. >_<