I download an application (OmniGraffle) that comes with a trial period. I tried the app and decided to delete it. I must have not dragged it all the way to the trash because it was on my desktop. I clicked on it and was informed I still had 3 day left on the trial - that is correct. However, I am wondering where OmniGraffle keeps this information. I next deleted the application all the associated files I can find with the file name of content "omni group" and "omnigraffle" - including "system files." And then I emptied the trash I then re downloaded the trial .dmg and it still says three days left. How can I find out what file or mechanism OmniGraffle is using? I suspect it dropped a hidden file on my Mac. I would like it to go away.