jarre - 2008-03-13

Hy use dc sueccsfull on 10.5.2  now i what to uprgade to DoubleCommand 1.6.6b1 but my system hangs compet only the power botton brings life !  even when i disable DC the same ! i have all updates on Sotware on my macpro any help ?
ps great Programm i miss as a switcher the Pc style home and end keys ! now i only miss the 2nd enter key on rigth below + on apple alu keybord.
Thanks
sincerly
Jarre