I now seem to have got Vuescan running OK on Ubuntu. What I did not realise was that there were not two but three packages to install from Epson's website for the 4490 scanner. iscan-data_1.22.0-1_all.deb iscan_2.29.1-5~usb0.1.ltdl7_i386.deb iscan-plugin-gt-x750_2.1.2-1_amd64.deb It was the final "plugin" package that I forgot! Scan-130217-0002 My first scan effort with ubuntu - the glass walkway at castle green in Taunton