Firstly you should have the visibility of your checkboxes and labes set to yes and then you can ignore the labels as their visibility comes and goes with the checkbox. Try it on Curtis's example.
Note also that he appears to have errors on the odd items in his even CASe as he does not address the odditem label, not a problem if you follow the advice in the first paragraph.
His code is a very useful example of the Select CASE showing the Case Else.
Brian
BTW if you use simple control names with no spaces then ACCESS intellisense will allow you to avoid typos
If you continue to have problems then Compact your DB and attach, zip if necessary