Hi Margo,
Thanks for posting! Plugable has a team of DisplayLink-savvy tech support people -- you'll get the quickest reply contacting us directly.
Just email
support@plugable.com. If you can run DisplayLink's support tool and attach the .zip file it generates to the email, we'll be able to figure out what's unique about your configucation, and can usually solve things quickly. Here's how:
http://plugable.com/support/tools/di...k-support-tool
I'm sorry for your frustration - thanks for giving us a chance to help!
Bernie (plugable)