my sony vaio laptop has been shutting down, falling asleep and restarting randomly...its been doing this for a while now, what wrong with it and what should i do?

[elif.y]

My sony vaio has been shutting down, falling asleep and restarting randomly...its been going on for quite a while now and i dont know what to do. any advice?

Message was edited by: elif.y

Message was edited by: elif.y