visible label based on text value

[jer]

I am using a database on a LAN and I have the following in the on format event
Me.ContactList.Visible = Not IsNull(Me.ContactList)
However when one user opens the data base the label is hidden if the
condition is true but if another user on the LAN subsequently accesses the
data base all the labels are displayed
any suggestions

 

[jer]

Thank you Marshall for the quick response. On closer review I am noticing
something else which is not consistent I supplied one of a number of labels
which are in a group header. In order to format the report to fit on a letter
size page, I have three rows of headers and 3 rows of details, e.g.,
Header= Type

Type1
label1 label2 label3
label4 label 6

detail1 detail2 detail3
detail4 detail6

Type2
label1 label2 label3
label5

detail1 detail2 detail3
detail5

I notice that the labels are not always matching the details. e.g label 5
for type2 is not visible even though there are details under this header
any other suggestions