Do i need a new hard drive?

Two weeks ago i finished building my new pc and has been working fine until today. When i turned it on it shows the Linux logo and then the screen turns black and all i can do is ctrl+alt+delete which restarts the pc. can any body help.

Create a UBCD and try some of the hard drive programs. See from there.

I tried UBCD and some other things and didn't work, so i tried reinstalling linux right now and seems to be working fine now.

Use it till it CRASHES!

Been using a desk star forever. One day I will get something new...