Combo Box Row Source Problem

[Guest_imported]

Why will this not work?

Dim strsql As String

strsql = "SELECT Asset_Label_Numbers.AssetLabelNumber " & _
"FROM Asset_Label_Numbers " & _
"WHERE Asset_Label_Numbers.AssetLabelNumber Like '" & Me!cboCategory.Column(0) & "*'"
Me.cboResourceID.RowSource = strsql
Me.cboResourceID.Requery

The drop has nothing in it. But the query returns records in break mode.