This past spring I purchased a used Epi Les Paul Custom that came with a POD XT Live. It took me a while to figure out how to use the POD and adjust the tones to what I wanted. But, after getting used to the POD and figuring it out I really like it. Last week while practicing I was having some sound issues. I would select the channel that I wanted and start playing and the sound would drop out. If I hit the same channel on the POD it would reset itself and I would have regular volume again for a few seconds and then it would drop out again. I switched guitars to make sure that the guitar was not the cause of the problem. Another issue that just started is a worbling sound when I am using any distortion. This past Sunday while playing at Church I was playing very soft at the end of the service and all of a sudden the volume just spiked out of nowhere........NOT COOL!!! Any suggestions???? When practicing at home I am going through a DI box, and then directly into the powered mixer, at Church I play into an amp that is mic'ed up.