samba - Mar 2003 - Setdriver fails V3.0-alpha21

Hi everyone,

I have a problem for some time and could solve it. So I beg for help.
I can't set the printer drivers though enumprint and enumdriver are okay:
#rpcclient localhost -N -U'root%jojo' -c 'enumdrivers'

[Windows 4.0]
Printer Driver Info 1:
         Driver Name: [OKI10EX]


[Windows NT x86]
Printer Driver Info 1:
         Driver Name: [OKI10EX]

# rpcclient localhost -N -U'root%jojo' -c 'enumprinters'
         flags:[0x800000]
         name:[\\sesam\OKI10EX]
         description:[\\sesam\OKI10EX,,10 S/min,Laser]
         comment:[10 S/min,Laser]

# rpcclient localhost -N -U'root%jojo' -c 'setdriver OKI10EX
OKI10EX'
SetPrinter call failed!
result was NT_STATUS_UNSUCCESSFUL

I've got a debian-linux system
samba version:3.0.alpha21

Any help is appreciated

Peter