Gvim 7.2 no ALT-GR level

[Herbert Simon]

Hello dear clever Guys!

I compile the gvim 7.2 on HP-UX 11.11 with gcc. All running fine, the vim works but the gvim do not map all keys using ALT-GR in the right way. A backslash looks like a Greek p, the AT sign is a "q" and so on. The previous vim 6.3 installed from a HP-poring center works fine.
Wat's wrong here?? Hot to solve this??

Thanks for your help

Regards
Karsten