I recently transferred all of my Portable Apps from one USB drive to another. Since then, the PortableApps.com platform won't work. All of my other apps will, but the app launcher itself won't. I've tried uninstalling and re-installing, ejecting and re-inserting drive, but nothing seems to help. I'm not seeing an error message anywhere, it just won't start up. I've been running Portable Apps for years and have transferred files this way before, and have never run into this problem. I'm not sure where to look next to troubleshoot. Thanks for whatever help you can offer.