Hello, I tried the 2.5 beta version but the pwm doesn't work on osc1, while it works fine on osc2.
The problem is there both as audio unit, vst and standalone; pwm worked flawless on version 2.0.2 so I rolled back to that version untill there's a new one working.
I'm on mac os x 10.7.3 on a macbook 4.1 (but I had the same behaviour also under 10.6.8 on another macbook 4.1 that I have access to).