I have downloaded the driver of 600cu for vista you provided. But I have tried many time to install and uninstall, but 600cu can not work in my vista home basic version. It can test the scanner successfully in control panel, but when I scan in the program, it apprears the GUI scanning interface, I click preview or scan, the scanner cannot start to scan and I only hear the sound of scanner and then the indicator light in the scanner is just sparkling, the scanner can not work. Do you know the reason why it can not work and would you please give me some advice? Can't this driver work in vista home basic? I see you said that it works in your vista home premium, the version of vista is important for this driver? Would you please help me test your provided driver in vista home basic? Thanks in advance.