Ghost value in textbox

[MikeSpider]

Hi, I have an empty textbox .
Now this is very weird!

 If textbox1.Text <> "" Then
            MsgBox("It's not empty")
        Else
            MsgBox("It's empty")
        End If

I dont write anything in the textbox but it still says "it's not empty!" if I put the cursor in the text field and press
"delete" even though i didn't write anything, it then says " it's empty!" .
Weird stuff!