eh you all were right guess it was the 'newness' of the phone! seems to have bedded in fine now,but was a little sketchy when 'out of the box' still i would imagine sony wouldn't be to happy to learn this kind of thing can happen,but then again a recall for a glitch like this wouldn't be best practice and would be very expensive,so anyone having a similar prob just push it in as best you can and keep pressing on the cover lightly but firmly every now and then it will soon bed in ( thats the cover over the card slot)
have fun