I don't think I can update the graphics driver on my own on a mac.

I have played with the graphics settings in the preferences but so far no luck. Yes, photoshop is updated to 13.0.1

thx

Yea, I have restarted photoshop quite a few times but same problem. Now all the sudden when I have a selection and I use the lasso tool to either add or subtract from the selection it seems the tool freezes somehow (not sure how to explain because it is not photoshop as an application freezing). I have to click somewhere on the screen which deselects the selection. I have to hit cmd-z to get back my selection and this time the add or subtract with the lasso tool works fine....

I did a clean install of Mountain Lion and seems that Photoshop works much better and faster now.

So far it hasn't crashed on me yet when rotating the images and working on them. Lasso tool works without a problem too.

Before installing the new OS I also noticed that when I was dodging and burning inside a mask and I did small and repetitive strokes, the brush strokes would lag but now I don't witness that anymore either.

I can't say if installing Mountain Lion improved it or that I have left out installing certain apps I didn't want anymore or simply reinstalling photoshop. No idea but seems to work

Seems the problem didn't go away. After installing everything from scratch (lion) and only photoshop to exclude conflict with other application installed Photoshop still crashes when I use the rotate tool.

I tried it on another iMac but this time with the i7 processor and it does the same.

Any clues anyone?

Thanks

Hi,

I rotate the entire image with the rotate tool. I usual use the the pen or brush when I rotate the image.

The graphics card is the

AMD Radeon HD 6750M 512 MB I am not sure what type of card they use in the 27" imac model.

The ram shouldn't be an issue because they are different on both machines.

thx