My UGA-2K-A DisplayLink adapter (running under Win7-64 bit, driver 5.5.29055.0, dated 11/26/2010) is apparently asserting that it supports hardware acceleration, but doesn’t actually.
This is a problem if I try to run the latest browsers (IE 9 beta, Firefox 4.0, Seamonkey 2.1 beta), which will attempt to use hardware acceleration if present. A window from one of those browsers, if displayed on my UGA-2K-A controlled monitor, will not update.
I have a workaround, which is to go into the browser settings and uncheck hardware acceleration. (Which can be tricky, as you might have to start the browser in safe mode, in order to do this.) It would be nice however if the DisplayLink adapter didn’t assert support for hardware acceleration in the first place, so that you wouldn’t have to do this.