Topic: 2000 & 2004 different behaviour

[hendie]

I am using a label as a toolbar "substitute" ~ I don't want to use a command button in this instance.
I use the following code to imitate a button behaviour

Code: [Select]

Private Sub LabelAbout_MouseDown(ByVal Button As Integer, ByVal Shift As Integer, ByVal X As Single, ByVal Y As Single)
    LabelAbout.SpecialEffect = fmSpecialEffectSunken
    About.Show
End Sub
______________________________________________

Private Sub LabelAbout_MouseUp(ByVal Button As Integer, ByVal Shift As Integer, ByVal X As Single, ByVal Y As Single)
    LabelAbout.SpecialEffect = fmSpecialEffectEtched
End Sub

It works fine in 2000 but in 2004 it doesn't seem to receive the mouse_up event and the label remains in the fmSpecialEffectSunken state.
Anyone have any ideas as to why this behaviour occurs?
I can get around it by using

Code: [Select]

Private Sub LabelAbout_MouseDown(ByVal Button As Integer, ByVal Shift As Integer, ByVal X As Single, ByVal Y As Single)
    LabelAbout.SpecialEffect = fmSpecialEffectSunken
    About.Show
    LabelAbout.SpecialEffect = fmSpecialEffectEtched
End Sub
and that works in the 2004 version but I'm just wondering why the difference in behaviour