This might be a stupid question, but I would like to be a 100% sure. I would like to use a symbol from the preset symbol that came bundled with the software, in a logo. It will be slightly modified. Any license restrictions here? I have seen this same item for sale on dreamstime.com - in the illustrator symbol library, it is under the "logo elements" menu.
It will be used for a business based in Chicago.
Your use of a piece of sample artwork that ships with a software is not what you should be worried about. You should be worried about what you're doing to your customer.
If your and your customer's roles were reversed, how would you feel about finding out that the designer you hired to create an original primariy identity mark for your business had sold you something containing an element that would likely be recognized by anyone who ever used Adobe Illustrator, and which you therefore couldn't rightfully even register the copyright?
Well, through some major research, I'm really not all that worried about it. The person who wants to use this as their logo, WANTS it. However, through my research, I bet Adobe would be very interested in the fact that people are using these symbols and have uploaded them to dreamstime.com and are selling licenses for them.
My logo design totally ripped apart the symbol and put it together completely different from what it originally looked like. Anyway, I just wanted to make sure that I haven't "stolen" anything, like the two links above have.
My logo design totally ripped apart the symbol and put it together completely different from what it originally looked like.
That corresponds to my understanding of the OP, namely that the symbol in question was only a smaller part of the basis for the final logo.