That's not really your problem... It's the logic of your select case statement that is wrong. A select case is only good for one expression. Here is an excerpt form MSDN:
"A Select Case structure works with a single test expression that is evaluated once, at the top of the structure. The result of the expression is then compared with the values for each Case in the structure. If there is a match, the block of statements associated with that Case is executed" & "Notice that the Select Case structure evaluates an expression once at the top of the structure. In contrast, the If...Then...ElseIf structure can evaluate a different expression for each ElseIf statement. You can replace an If...Then...ElseIf structure with a Select Case structure only if each ElseIf statement evaluates the same expression."
So in other words, you need an if then else statement...
Later,
mwa