Analogue-sequencer

Hello,
I upgraded to the P3 Firmware v3.1.007 BETA 10 and since then when I'm 
in arpeggio capture mode, each key i hit is doubled. For example, if I 
want to do a C and D note arpeggio, I get C C D D. However, when I'm in 
the normal record mode, not arpeggio capture mode, i don't get the 
double triggering, so there's nothing wrong with my midi keyboard.

Any ideas? I figure its just a setting, but i don't have any 
accumulators set or anything obvious.

thanks