Launch UserForm With Double Cell Click

I've found the code below and tweaked to suit my needs but having trouble. Had it working one time. The code below calls a userform when the user double clicks on a cell. The form pops up and is not active/enabled. I cannot select anything on the form until I select a cell on the sheet, then everything on form becomes active/enabled.

Private Sub Worksheet_BeforeDoubleClick(ByVal Target As Range, Cancel As Boolean)
'check cells for desired format to trigger the frmSel_WBS.show routine
'otherwise exit the sub
Dim NumberFormat, DF
NumberFormat = Array("[Blue]General")
For Each DF In NumberFormat
If DF = Target.NumberFormat Then
frmSel_WBS.Show vbModeless
End If
Next
End Sub