Ok, this is strange.

A user is a member of a group. Group has full control of shared folder. User logs in, maps drive to shared folder because she's a member of the group. She goes to add files to the folder, and gets a message that "There is not enough free space". I checked the effective rights for her on this folder, she has full rights. Added another user to the above group, and was able to add files. Also, the affected user's home directory is also on the same volume, and she is unable to add files to it. Repaired single object in dsrepair, but no go.

Repair volume objects and trustees?

NW6.5 SP3, eDir 8.7.3