I just got a SansAmp Bass Driver DI. Last night I plugged it into the effects loop on my iAMP and when the BDDI was off, I was getting some distortion. When I just ran through the BDDI and into the normal inputs on the iAMP, not using the effects loop, everything was perfect (e.g., with the BDDI off there was my normal tone, with it on, I was getting some nice SVT heaven or whatever I dialed in on the BDDI). Am I not understanding the iAMP's effects loop or the BDDI in some fundamental way? Is the effect loop on my iAMP messed up? Also, when I used the effects loop, the only volume control that seemed active was the effects level. Is that right? Reading the manual makes me think it's not. Thanks in advance for any thoughts.