Ruralguy, can't believe I forgot Option Explicit :$, cur is a public variable, anyway, got it working now, one more question though while we're here
Dim res1 As String
Dim res2 As String
Dim pno As String
pno = Part_No.Value
res1 = DLookup("[Size]", "[Products List]", "[Part No] = '" & pno &...