when i import wave or mp3 audio to home studio 2002, the original tempo is slightly off for some reason. also, when i record my external synth, i get slapback...hmmm...
Yeah, I've had some problems with that, too. I don't know how to fix it the hardware or software way, but I've got a sollution which works...
In the very beginning of a audioclip that's of tempo, zoom in. You'll see that Sonar (or HomeStudio) has recorded a short silence before the audio kicks in. Just delete this silence, and move clip to the start of the nearest measure.