>>198
I don't think it's anything special at all. I run latest Lion.. 10.7.5. I haven't upgraded to ML for a multitude of reasons.. main one being that I'm in the middle of a project and don't want to deal with issues that might pop up due to OS change. :)
But yeah, The U v3.3+ crashes every time I extract something but the files are extracted just fine. It is annoying to have that 4sec delay when the process is finished. Also, OS X doesn't pop up a crash dialog which is also weird.