Realtek Line-In Problem - Audition 3.0 - XP

[808Skate]

Hello all, I am a DJ located in the San Francisco Bay Area, CA.

Recently I just got a Dell Inspiron Mini w/XP that came with a Realtek HD audio driver. I figured it would be a great little lappie to stream-record mixes with. So, last night I went to plug my mixer (Vestax PMC-50Pro3) into the microphone Line-In port. I've got a good Monster Cable RCA to 1/8th jack I've been using in the past, and it worked great on my old laptop (which is dead now). All I had to do was plug it in, select Line-In from the pop-up menu, fire up Audition, press record, and spin away. Easy.

Now with this new Realtek Audio Driver, when I plug my RCA to 1/8th into the microphone jack and select Line-In, it says, "This Device Type Not Supported!" Damn, I thought technology was supposed to make things easier. Ive tried fiddling with the Mic Volume option, the Stereo Mix option, and nothing works. I'd really like any advice or remedies you can offer me. Maybe I need a different kind of RCA adapter, or something else I don't know about? Pretty frustrated right now at the whole thing. I was supposed to have my latest mix recorded last night.

Many thanks to anyone who can shed light on this.