We use IE 8 as the front-end client for a library management system. One of its functions is checking books in and out. Each book has an RFID tag, we have a Feig RFID reader that reads the RFID tag and sends the 9-character identifier (originally a barcode) to the PC, and a piece of Bibliotheca software (Smartstation) passes it to the screen via a software wedge. The cursor is positioned in an input text field on the webpage in IE, and the barcode is hence read into this text field. The barcode is then transmitted to the LMS server and book gets checked in or out as appropriate.
The problem : the scanned book barcode often appears in the text input window with characters duplicated at random - e.g. A12345678 gets read in as A112345678 or A123456788. We know that the correct barcode is sent to and received by the PC, as if we use e.g. Notepad as the input window, A12345678 appears correctly.
We have turned off autocomplete in IE, with no effect.
Anybody know what's causing this ? Any suggestions gratefully received !