Using CS6 on Lion here. I have noticed some, shall we say, interesting things in the venrable Illustator CS6. Let me say, I work with Illustrator daily but never profess to be an expert.
1. Gradients appear banded, not smooth as with CS5. Almost looks like a display issue. Not sure but if I create a square, fill it with a linear gradient gray to black, direction not important. I can actually count the steps. Maybe there was some sort of anti alias before or is a feature I haven't found? Strange.
2. Sometimes, in random, or what seems random, situations, I can't use the handles to manipulate my gradients after pressing the "G" key. This was not the case before. Seems to be most frequent when there are gradients applied to multiple shapes.
3. Thumbnails in the Layers pallet are not updating. Randomly. a close and open gets them back or a click of the arrow up and down.
4. Save for web resizing freezes. CS5 had an area to type in a size to save as and then you hit apply. CS6 removed the apply, presumably to make things simpler as it is supposed to auto update. It doesn't. You have to click on the dimension area below to get the image to resize but after a couple attempts it kept trying resize after I would get "80" of the "800" pixels I wanted to size to. Repeatedly.
Unfortunately, I work Illy pretty hard and to have these random bugs has slowed things down to the point that I had to go back to CS5. Everything AOK on CS5.
fwiw, there seems to be a lot of strange things going on when the screen is required to refresh. Some things do, some things don't. Pallets, thumbnails, patterns, etc.
Thanks in advance to anyone who can help or co-miserate.