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I'm using Lion on my iMac, and when I work with big Photoshop files (web design, not photos), I see sometimes slideshow when I move group objects. I think that this is a bug with the video drivers.

After some time, I installed Leopard and everything worked so fast but in one moment all everything was very slow (even OS X's effects) and I think that is video drivers bug too.

Has anyone else seen this? What can I do?

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You need to provide a little more information about the system to allow any solid opinion as this could be a lot of things. iMac CPU Clock, Ram installed and HD spec at least would be helpful. You might just be working with too large an image (particularly if heavily layered) for the RAM you have installed and the whole system is swapping – Kevin Jul 19 '12 at 7:47
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Please confirm you're running OS X 10.5 on a 2012 machine. – Max Ried Sep 18 '12 at 9:08

closed as not a real question by Mark, bassplayer7, patrix♦, bmike♦ Jan 6 at 1:29

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, see the FAQ.

1 Answer

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When you open the Terminal and type in "top" and press enter, can you see a process which consumes a lot of CPU time? If so, what's the name of that process?

You could try to kill that process by remembering the ID of the process, pressing ctrl+c to cancel the "top" process and then type in: "kill #" (replace # with the process id) and enter.

Notice: If it's one of the photoshop processes, data may be lost! Try it with unimportant files first.

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