Knuck, when you first plug in your Surface and turn it on does the Surface screen flicker on and off like it is adjusting to the fact that an extra monitor is hooked up to it? I went ahead and got the Plugable UD-3900 and really like it for the most part except that I do have 2 23'' monitors hooked up to it and every time that I hook the Surface up to the Docking Station and even right after I unhook from the docking station the screen on the Surface does this terrible flicker/roll thing and it makes me wonder about long term effects after this has happened 500-1000 times!
No flicker on mine although I only have one monitor hooked up. Not sure what the long term effect would be.