Hi to all!!! I have just bought a two tv stick rk3188 (cx-919 and rk31sdk models) but I am having a problem with both when it comes to external HD. I have been using a 2TB WesternDigital external HD and sometimes the stick became inestable and close aplications and not scan the HD in apps like archos video player, or system explorer, etc. Now I would like to know if my stick are able to support the external HD or is another problem. I have been using it conected directly to the big USB port, I also tested in the OTC port, and also tested it with a HUB USB and in both cases I see the same problem. So please, what do you think it is the main problem? What should I do? Do you need another detail? I also can't see any option to extract any USB saftely like windows has. Thanks for your help and time!