I have been trying to scan photos using Arcsoft photostudio 5.5. It could be that the answer to my problem lies outside the actual software and has something to do with my settings. I use vista Business. After I have scanned a couple of postcard sized photos I get the following message: "There is not enough free disk space to complete the scan. Scanner driver will be closed. Code: 31,0,0" I then run CCleaner, shut all other programs and even reboot, but the problem always reappears. I neve had this trouble with my earlier version of Photo Studio.