Report "I have a microtek 1900 flatbed scanner. It was working fine in all modes. Worked great using Acrobat create PDF from scanner. My computer shop recently cleaned up my computer: Viruses, garbage, etc etc. Now my i900 is neither recognized as a usb device and not recognized by either Acrobat or Photoshop. I have reloaded the Scanmaker software with no success. What needs to be done? Thanks Ron"