One of our designers was having a problem with Illustrator CS3 opening and saving files very, very slowly on her brand-new Intel iMac. After Googling for about an hour I found the answer hidden in a cached forum on Google. I wish I could link to the original post but I'm afraid the page is gone. So, here's an except from Google's cached page…
Matthew Kivett – 12:36pm Jul 25, 07 PST (#35 of 56)Alright, I believe I have found the solution to this issue….The slow performance is due to a bloated/corrupted preference file: com.adobe.mediabrowser.plist which is located in the user preferences at username/Library/Preferences/com.adobe.mediabrowser.plistSince this is a preference file, it can safely be deleted. Illustrator will generate a fresh copy upon relaunching.
That fixed the problem. Thanks Matthew!