I also have a new ACER ASPIRE V3-571G laptop with USB 3.0 and my external monitor keeps connecting and disconnecting every couple of minutes as if someone is pulling the USB cable in an out, has built in NVIDIA GeForce GT 630M.
Very Frustrating, I only just bought both Laptop and DynaDock new - so far not real impressed - Im running stock install of windows 7 64 bit.
Acer Aspire V3-571G Laptop:
http://www.acer.com.au/ac/en/AU/cont...l/NX.RZJSA.004
Toshiba DynaDock PA3927A-1PRP
http://www.shoptoshiba.com.au/p-4606...927a-1prp.aspx