Acrobat X Pro Serial Number Issue
I recently installed my Acrobat X Pro copy on my new Windows PC. After several times of using it, a window started popping up upon each use, saying that the serial number is invalid for Acrobat Pro (and a count-down for buying the product within 30 days). That never happened to me in prior installations (as I've had several computers changed since I orinally bought this product). I'm sure I have the right serial number.
