Fn key as keybord modifier on IBM R40

[eph]

Hi, I've been trying for some time now to use Fn key on my laptop as modifier key (like Alt key) in OpenBox. However I hasn't been successful so far. Has anybody managed to do so? I mapped correct keycode (227) to different keysyms (first F35 (as suggested on ThinkWiki), then Super_L). But it doesn't work in Openbox. The behaviour of Fn key is somehow strange (in xev it behaves like no ordinary key (like letter) but neither as modifier (2 states - pressed/unpressed), there is a little pause before the key starts to repeat itself, but only one state). So maybe it's not even possible to work with Fn this way.

Another question: when I press power button or fn+f7, no acpi event is generated (but other works fine). Does anybody know why? I'm using ibm-acpi on kernel 2.6.22.5 (Debian/Lenny).

Thanks