Notes/Domino 4 and 5 Forum

I have an 44.6 Database that works and opens up fine in Notes 4.6 Client. I have a Button with Hide when Formulaes that works fine in R4.6 and when I open the same document with same previledges in R6.5, I don't see the button. This Database is designed using R4.6 Notes.

Please advise what could be the problem.

Thanks in advance,
ac ac