It's not a workgroup issue - it's a user issue.
You need to create a user called dream on the PC, give it rw rights and then use that user/ password when creating the mount on the Dreambox.
these give the general format (case sensitive):
mount -t cifs -o rw,nolock xxx.xxx.xxx.xxx:/ppppp /ddddd
or,
mount -t cifs -o user=dream,password=dream//192.168.0.1/ppppp /ddddd
xxx.xxx.xxx.xxx is the ip of the pc
ppppp is the shared folder on the pc
ddddd is the point where you want it mounted
the Dreambox folder may be /hdd or /mnt
some other posts that have the odd bit of related info:
http://www.satellites.co.uk/satellit...ba-7020-a.html