I have a user that everytime they try to bring documents in using an EPson GT-S50 scanner the CTXtwnPA.exe crashes. I have re-installed both the scanner software and the Citrix client (trying from version 12.4 up through the latest receiver) and it still crashes. They are running on WIndows 7 64 bit. After googling the only thing I can find is a reference to a Xerox scanner. Has anyone had expierence with issues on the Twain interface?