I am trying to install the software for my scanner (my computer is Windows XP)  It tells me to "click here to install paper port" so I click there and nothing happens.  However, eventually the scanner does get hooked up but some of the features don't work.  So, I took everything out and tried again...same results.    I took the disc and installed it on my other computer, also Windows XP, and everything installed beautifully?  What is wrong with this computer and how do I fix it so the scanner will download correctly???  Thanks