Tascam and Guitar line problems - Help I have a Tascam US 144 MkII connected to a new 13.3 macbook pro and running garageband. If I plug my guitar into the right guitar/mic input and select guitar in garageband (to access the amp models and stomp boxes) all I can get from the speakers is a clean guitar sound, regardless of dialled effects (the guitar/mic switched to guitar on the Tascam). If I use the left input on the Tascam - no problem. Weirdly, if I set my guitar up as a real instrument through the right Guitar/mic input I can access the less interesting effects on that option and they play fine. I've tried fiddling with channels in Garageband and I've fiddled with the Tascam settings to no avail - please help... Is it a Garageband problem, a Tascam problem or a problem with the author? I suspect the author... I know him too well.