Im playing one of my backed up games, and my HDD keeps clicking. loudly. I have an upgraded HDD, but its never fdone that in all the time i have had it. Is there anyway to fix this?

How old is this drive??? This is a commonly a 'Death Rattle' when you hear this coming from a HD. The bearings are shot and soon nothing good will come of this... Get what you can off of it before it kicks the bucket completely.

You should Goast the drive to another as soon as possible. It sounds like the drive is about to die.

If you don't know what Ghosting means, there's a basic tutorial here.

You'll need a copy of Norton Ghost first of course. The guide is just old; of course you can use a newer copy of Ghost...

My Maxtor's been loud as shit since day 1. Maye it's just in comparison to my 5 or so WDs, but it's SOO loud. And has been making grinding noises for over a year now. Still working tho.....

its like 4months old

Ya have to think of it this way... the read head is just skimming the top of the platters and those are spinning between 5400 to 10000rpms. Any sort of loud clicking noises isnt a good thing at those speeds. Something is going to wear out if not already in the process of a catastrophic failure. I have encountered this noise once from a WD that failed a couple of days later. The only other time I hear noises from my HDs is from the SCSI drives in my server when they come up to speed and the heads come out of park.
Well atleast the drive should still be under warranty from the manufacturer. As everyone else says... get what you need off it while you still can. Western Digital has the best return policy. Dont know how Maxtor is.