Illustrator CS4 restarts itself immediately after I quit it

Question

This happens pretty much every time I quit Illustrator. So I'd like to find a remedy.
I'm running OS X.5.4 on a new iMac 3.06 GHz Dual with 4GB RAM Illustrator CS4 v14.0.0.

Answer 1

Thanks, Wade. I trashed my AI settings folder in user preferences, and 
that handled the problem.
BTW, I love CS4 Premium Design Suite. You guys did a great job on CS4. 
I think it was a better upgrade than CS3, which is saying a lot, as we 
got a lot of mileage out of that version. Illustrator is better than 
ever with all of its new features and refinements. It's so much 
faster, too. Perhaps my new iMac 3.06 GHz has helped with that, too.
I don't know what it is with various posters on Macworld article 
comments threads, but there are a number of chronic "Adobe bashers" 
who always carp about the "bloatware" and high prices. With my screen 
name, "adobephile" I'm of course called a shill by those guys, but I 
really love your products, and I've been using them to make my living 
as a full time freelancer since I bought the first version of Adobe 
Illustrator in the spring of 1987.
It was very exciting. I plunked down my $500 and got one of those big 
green slip cases with Botticelli's "Venus" smiling benignly back at 
me. The package included a VHS video of John Warnock himself demoing 
the program. He was also sincerely excited about the product.
I had the advantage of having studied the Postscript language from 
reading Adobe's books on the subject, and I realized that Illustrator 
was essentially a GUI for the language.
Thanks again for being there over the years and for continually 
getting better and better.