I am far from being an IT person and am very frustrated in loading this software. I purchased the student version of Adobe photoshop CS4 extended and Adobe Illustrator CS4. My daughter had put a trial version on our computer for an art project. A month later I purchased both Adobe photoshop cs4 extended and Illustrator 4. I had trouble loading illustrator until I deleted the trial version. After deleting cs4 extended, the illustrator worked. However something messed up my printer. I did a system restore (opps) which messed up my Macafee virus. I finally fixed Macafee with the help of the customer service. However, the system restore took off the illustrator and put the cs4 extended version back on. What a DAY. I waited a week to try to reinstall illustrator and the CS4 extended. Now my system will not let me uninstall the trial version nor put illustrator on correctly. Help--you are my only hope.