Problem with culture settings in subreports

Hi,

I use Crystal Reports for Visual Studio (CR Version 13.0.13 and VS 2012).

The operating System is german and my application is set to the culture en-GB. Into the main report numbers and dates are correct set like culture en-GB. In all subreport are the values displayed in culture de-DE (like OS).

How can I make the values appear in the right culture?

Thanks for help