Just took my Microbrute out of the box. Just playing and experimenting with it, I quickly realized the LFO rate knob wasn't responding (no change in sound and the indicator light keeps blinking at a constant, relatively slow, rate) . Only when I put the LFO in seq mode and change the sequencer rate I can get the LFO rate to change. Any of idea of what might the problem be? Or should I send it back? Btw... Really disappointed! Been saving for a few months to buy this, and this is the experience I get in the first few minutes.