Query Drive Combo Box not displaying query results

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Hello and thanks for any and all assistance!

I have a database that is used by several users on several different
machines.
The backend database is housed on a file server.
Each user has a front end on their local machine.
The main form of the database has several query driven combo boxes.
These queries pull data from the back end database to populate the
combo boxes.

On one specific machine none query driven combo boxes are blank when
the user clicks on the arrow.
If I run the query by itself on this specific machine the query
returns the expected results. But the form simply will not display the
data. When the combo box arrow is selected the combo opens up like as
if there were a number of lines of data, the vertical scroll bar is on
the right side and I can move the scroll bar from the top to the
bottom of the combo box but the data simply isn't being displayed.
The machine that is having the issue just had it's hard drive re-
imaged. Prior to that the combo boxes worked fine.
I've gone through the MS Access settings on this machine and don't see
any that were out of scope.

On all the other machines these combo boxes are populated correctly.
All machines are running Windows XP Pro SP2 and Office 2003 SP3

Thanks again!!