Just installed C3D on my Dell POS Windows 7 machine (OS is up to date).
I have noticed that the functionality between using the F3 and F8 keys reverses itself when first used. If I hit F3 I turn Ortho ON/OFF. If I hit it again, I turn Osnap ON/OFF. If I do the F3 key, then do it again to get the Osnaps set how I want, then go to the F8 key to set the Ortho mode back to where it was before I hit F3, it changes my Osnap setting, and I end up chasing my tail around and around. I can use the SCREEN buttons down below my working area. but I prefer keys, finding it far easier to hit F3 without even having to look at the key board rather than put my cursor over the little square of turn Osnaps ON/OFF there.
I am aksing here first instead of in the Niller AutoGLORIOUS group, because you guys are smarter than those who just draw lines back and forth all day long.
Well, if it makes you feel any better, you aren't alone:
I don't see a resolution for it though.