-delete old versions of powerdigi and reset twice -install the appropriate version of powerdigi -calibrate it -enjoy which version is right for me? PowerDiGi_320.prc: T|C,Treo650,Treo700p,Treo680,Treo755p,TG50 PowerDiGi_440.prc: T|E,T|E2,T|T,T|T2,Zire71,Zire72,TJ24,TJ27, TJ35,TJ37 PowerDiGi_480.prc: iQue3200,iQue3200a,iQue3600,T|T3,T|T5,LifeDrive, T|X,TH55,Zodiac