i have got a seagate 4TB external hard drive which i keep just to back up my films and music and pictures...2 weeks ago it stopped working....someone suggested getting a new caddy for it...I did...i bought one that stated it supported any size drive...It wouldnt work...it would pick up i was trying to access a 4TB hard drive but it wouldnt read it at all...when i checked online the caddy only supported up to 2TB..so i bought another one..this again said supports any size HD and again i tried it and it wouldnt work...when i checked in the instruction booklet that came with it it only supports 3TB...today i have bought yet ANOTHER caddy...This one supports 4TB...its states it on the box...whoo whoo...i fitted the Hard Drive into it..no problem...I plugged it in switched it on...the power light flickered for about a second then went off again...now the power light on the caddy wont come on at all...Any idea what is wrong with this damn hard drive...The 2 caddies i had previously bought i couldnt even return becuase i had opened them and tried them and the seller wont take them back..so now i have got a 4TB external Hard Drive with 3 separate caddies and none of them will work...with the price of the HD and the price of the 3 caddies we are talking somewhere in the region of £300...what am i doing wrong..???