[chuck-users] is chuck case sensitive?

hi i am really sorry for this ultra-idiotic question but for some reason it is driving me nuts... i am running chuck from the command line on os x. when i try to run a patch like this: SinOsc S => dac; the compiler complains about: "undefined type 'SinOsc'" So typing that in lowercase works. So when I want to do this: SinOsc s => LPF f => dac; SinOsc works when i use 'sinosc' (all lower) but no matter what permutation of LPF i try it just doesnt work... Could this be that something is screwed up with my path? Is it not able to find that Ugen ? I am lost Thanks for all the help ! - jochen