Guys and Gals- I have a copy of CS2 on my current computer. My computer is still good and has a year or two of life left in it. If I buy the upgrade to CS4 ($199), what happens in two years when I get a new computer? 1. Do I install CS2 (again) on my computer and then use the same upgrade CD to CS4 (again)? 2. Do I just lose my license and have to start over with a CS4 full version (or CS5 by that time)? That is $$$$$$$$$$!!!!! Thanks!