Phoenix problem!!!

Hi all..I tried to flash nokia n90 and 8850 using phoenix and dku-2 cable..The problem occurs when the phoenix software stops the flashing procedure at 30%..Basically when it turns the phone from test to operate mode..What can be responcible for this error?..I have formatted my pc with win xp pro sp2 and using
full phoenix software with hasp and i have tried 2 cables (dku-2 & ca-53)..The phoenix software works fine with older nokia models by serial connection..Also the 8850 and n90 works fine with pc suite via th 2 cables..I have tried different versions of phoenix and different versions of firmware files..The problem still exists..Phoenix stops flashing procedure at 30%..Any opinion?...Thanks... :(