Just installed my old Epson RX420 software onto my friends computer and when I go to the Epson smart panel an error window comes up saying "C:\windows\twain_32\mftwain\cfg\com\applications.xml Not Found!" The printer is printing ok and the copier is working fine but it's just the scanning & saving through the Epson smart panel that isn't working. I've gone to the Epson website and downloaded the new drivers but with no joy. Anyone know what the error file is?