Aluminum Apple Keyboard: needs Fn key - disable in Parallels?

the new apple keyboard for the imac, etc. has a requirement that the Function keys (F3, F6, etc.) need to use the Fn key in conjunction with the function key to get the action. For instance, F10 alone mutes the sound but F10 + Fn does an F10 action with expose. You can change this in the KB preferences so that the relationship is reversed.

My question is: is there some way so that in Parallels, I don't need to use the Fn key but back in the mac os, I do? I guess I want to have my cake and eat it to.

thanks,
Jim