Shared drive properites fail

[Guest sihfmis]

I am trying to figure out why I have random users loose their shared drive

properties. I have a drive letter assigned to my users (H) that is setup in

the user profile. The drive is for their home location. Intermittently, the

drive looses its proterpies (ie-instead of the user seeing his/her

information, they see everyones.) What could cause this?