I disconnected my Griffin Powermate and the problem still persists. I am running 1.10.4 SVN 1963, P-4 3.2 , L-2cache , 2 gig RAM. I use VOX so when it hangs up I tap the mic to clear problem. I can find no consistency to the problem. I can go for several transmissions with no problem and then have it hang up on successive transmissions. Dave-W4DWG