I'm still seeing the laggy performance, but it doesn't show up as consistently as before. Because of this, I cannot say specifically that it is still DisplayLink related - I've removed the driver and will see if the issue returns.

I try not to shut down or reboot my new MBA 2011 very often, so sleeping and resuming is fairly frequent with me. I also sleep with multiple monitors plugged in (1 mini display port, 1 displaylink, along with the laptop screen) and frequently resume without being plugged into any external monitors - or sometimes a single (different) monitor via mini display port. That might be a part of it, I am unsure.

Thanks!

Active roll to play Flash video on the page to solve this problem ... it is fixed, when I pause Flash video ... but it can be traced back to the same page scrolling is slow and jerky, and when I return to an ordinary web page.