I realy need help,today my arnova 9 g2 was delivered .First thing who i try was to update my tablet with ICS from Arnova 9 G3..........everything was Ok but...???When i shutdown tablet and try to  Entering /recovery flashing mode result is nothing,hold MENU buton and pres reset and then on my PC see a message "one of the USB port connected on this computer is not working and windows can't recognise it " try this to all my 4 USB port and on one laptop PC and still same problem,recovery mode is mission imposible !!!
I'm going crazy............try to entering into recovery mode twenty times and still nothing,if somebody can help to resolve this problem i will be very grateful/Sorry for my english.....i'm from Bulgaria and my english is not very good