My MacBook pro has the blue screen???

this has happened 3 times now and i got it before Christmas.

If i log out, then open it to go on it, there is nothing but blue screen, it won't respond at all, i have had to manually shut if off and reboot it in these cases...any hints?

Your MBP is still under warranty. Make an appointment with your local Apple store and have them look at it. The blue screen could mean a defective hard drive or perhaps something else. Let Apple sort it out.

Regards.