I’m Guessing you have Windows 7 on your new computer, and E series cards. I had similar problems when I went from XP to W7. W7 won’t recongnize my E series cards. My R series are fine. Here is what the Panny tech support told me. It’s a bit clunky, but it works.
Open Device manager (I keep a shortcut on my desktop now)
Right click on any item (doesn’t matter what)
click on “Scan for Hardware Changes”
It should recognize the card after the scan. Occasionally I have to try a few times, but it usually works right away.
Good luck