JNet on SAPGUI 740

Hi

Im really struggling with the installation of Jnet/Jgantt on SAPGUI 740?

First of all i cannot check the checkbox for JNet in the installation guide. It tells me that some prerequisities are missing: SAP GUI 740 and 32-bit Java.

I have installed both but still i cannot check the JNet option. On another brand new PC i managed to get read of the Java error, but still i get the message that SAP GUI 740 must be installed?

Any good ideas?