I am not sure why, but my VGA-to-USB DisplayLink adapters gave me a problem on my brand new, nice work computer, but not my old and archaic home computer: web browsing was completely impossible on the extra monitor that connected via the DisplayLink.
Luckily I stumbled upon the last post in a particular thread
here.
Please follow these instructions to relieve this problem for Firefox and Internet Explorer.
http://www.displaylink.org/forum/sho...7&postcount=23
Here are the instructions on Chrome:
http://www.sevenforums.com/tutorials...-turn-off.html