I've forgotton all my SQL since messing with controls (... and
good riddance, boring, boring, boring)

Dim myKlantID As String = CType(myDataReader.GetString(0), String)
Dim myNameDB As String = myDataReader.GetString(1).ToLower.Trim <<--- why no
Ctype ?
Dim myPassDB As String = myDataReader.GetString(2).ToLower.Trim <<--- why no
Ctype ?

anywhere I think, @Page , in code, in web.config, just
write "EnableSessionState=true" somewhere and that should do it, you could even
write it on the back of your hand in case you forget to do it.

Hey scoopie, I have some bad news for you .... someone has been through your
code and changed lots of words to German, no wonder you dunno whats going on.