The solution posted by Bernie from Plugable worked great for me, here is his post:
http://www.displaylink.org/forum/showthread.php?p=76120
I would surmise that even if you use a different manufacture's dock (but it's still based on the DisplayLink chipset) then upgrading the base video card driver (IntelHD Graphics Family for the Surface) would still be the solution.
It worked for me - and I had the same symptoms you describe.
Note that while the download package listed on the Plugable site here:
http://plugable.com/2014/12/03/how-t...aphics-drivers
...says v15.36.7.64.3960
After installation on my Surface Pro 3, the Intel driver reported by device manager is v10.18.10.3960
...I think this is normal, there is other Intel software (like the tray icon thing) that is v15... but the actual hardware driver is still v10...