The scanner was previously installed on my old (now dead) Dell running WinXP. It is now connected to my new Dell running Win7 Home Premium. I downloaded and installed the driver/utility package for Win7 64 bit from the Epson site. The scanner works fine if I use the Epson Scan utility. But when I try to launch the utility from the scanner buttons it works intermittently. Sometime it will launch the utility in the appropriate mode, say scan to PDF. Other times it will not respond to any button.