I went back to the Latitude and tried to install the drivers through the device manager, but got the good old "Windows can't open this file" message. I've tried to install via DVD and also by copying the driver files to the Lat's C Drive via USB, all to no avail.
The files are called "click once application" files and, if I click on the original downloaded file (on the second PC) they open. I'm flummoxed--why would the files act differently and what do I need to do to install them in the Lat?
Thanks in advance