IE9 Print button does not work from CR

Hi.

I am fairly new to crystal reports so forgive my knowledge level and understanding

I have a customer who makes crystal reports. When the report is shown on his own helpdesk program it shows perfectly.
Except the button print and export to pdf does not work.

You are allowed to push the buttons but no reaction is initiated.

He runs IE9 and has Crystal reports runtime engine for .Net versjon 13.09.1312

Any ideas why it is not functioning properly there?

I cannot manage to replicate the problem on my end with same versjon of IE and CR.