Hi there Graham, and welcome to the forum.
First off, is it Guitar Tracks 2 or Guitar Tracks
Pro 2 you're using - it shouldn't make a great deal of difference but it's best to be specific.
For the drivers question, we'll need some more information:
* How are you connecting your Black Box to your computer?
* What are the signal paths you're using to record your guitar, drums and vocals?
* Are the drums live, from an external drum 'machine' or drum loops?
* What drivers are you using for each procedure - MME, WDM or ASIO4ALL?
* What is the name of you computer's soundcard?
As to the mp3 encoder Graham, that's easy - and
free!
For quick conversions, download
Shaung's WAV to MP3 encoder from this link:
http://www.shuangsoft.com/Shuangs_WAV_to_MP3_Converter.asp For a more sophisticated encoder, which also allows variable bitrate conversions, try the excellent
C-Dex - download from here:
http://cdexos.sourceforge.net/?q=download Steve