What is the difference between True vs. xlTrue vs. msoTrue? I had a Select Case True evaluating which of ten Optionbuttons was selected. While OptionButton1 was actually selected. The Select Case was choosing OptionButton2 and performing that code. I changed xlTrue to just True and then the Select Case picked the correct OptionButton. I didn’t make up “xlTrue” – must have seen an example somewhere, but this issue made me wonder what’s the difference between those three and how do you decide when to use which. Appreciate any insights or if you can point me to a reference I’ll read up on it to save you typing. Thanks.