[FreeNX-kNX] How to disable F4?

[Lars Mueller]

Hi All,

I've got a medium sized problem here with freenx in combination with my 
ERP System Application.

If I press 'F4' in the program the nxclient wants to terminate my 
session - also the program reacts correctly.

Is it possible to disable F4? BTW how can it be that one keystrike 
effects on two programs?

Thanks for any hint,

Lars