I love the Prime and use it everyday - I pout ICS on as soon as I bought it but didn't do a factory reset. It is laggy and often offers me the choice of closing the browser or waiting. It occasionally freezes for a second or two. Also twice in the last week I have woken up to find the Prime switched off, It would only turn back on by holding the power button in for ten seconds. I am thinking of doing a factory reset but am worried about what I will lose - files, pics, game saves settings etc - what do you reckon - will I gain much?