well, i have removed autotangent, but the problem is still there

. I thought it could be that maybe I had messed too much with my current scene, but I had the same issue in a new scene with a simple animated object. Yeah, the curve cleaner function is cool, but it does it for all tangents, there's not an option to do it only on the selected keys. I like to fine tweak the tangents in my animation by hand when I am almost done with my animations... But while I am working on them, it is a pain in the ass to be constantly tweaking all tangents everytime I place a key because all interpolation goes to hell.
Anyway, thanks for your attention... I'm looking forward to the maya 2009 version, I think I'll switch to it as soon as the tradigitools new version is out... it's going to be great to work with layers, I hope I don't have these problems with it
