is there any risk in selling software that is licensed in your name?

I'm selling my Macbook Pro with Office for Mac 2004 pre-installed. I'm curious -- is there any security or legal risk involved in selling software that is licensed in your own name?

That will be the only copy of it installed on any computer -- I won't be using it at all. I could change the license information, but I don't have the product key so that option is out.

I figure the only real risk is if the new owner was to do something illegal with the software (e.g. selling copies of it to 1,000 people), but even then I could imagine it being traceable back to that person.

Any input is much appreciated! Thanks.