[Samba] RE: ACL on groups working half

[Tjaco]

 >Is this an AD group?  If so, what type?

mygroup is a global group

in this example:
mygroup is kantoorautomatisering
tjaco is mastt

it shows up by getent group as:
ARCRDM+kantoorautomatisering:x:10077:ARCRDM+mastt:

reading the logs it seems to authenticate correctly but seems to bail 
out at: chdir

[2006/03/29 12:34:30, 3] smbd/process.c:switch_message(886)
   switch message SMBtrans2 (pid 18809) conn 0x8380258
[2006/03/29 12:34:30, 0] smbd/service.c:set_current_service(51)
   chdir (/mnt/sdb1/data/shares/KantoorAutomatisering/) failed
[2006/03/29 12:34:30, 3] smbd/error.c:error_packet(105)
   error string = Permission denied
[2006/03/29 12:34:30, 3] smbd/error.c:error_packet(129)
   error packet at smbd/process.c(959) cmd=50 (SMBtrans2) 
NT_STATUS_NETWORK_ACCESS_DENIED