Faulty Hard Drive?

Not really related to this newsgroup but |have always found people really helpful and knowledgable here.

Currently Have:-

Vista Business
Asus P5B Deluxe
Intel CPU Core 2 Duo E6600 2.40GHz
Asus Extreme 7600GS Silent 256MB DDR2
250GB Seagate Barracuda SATA II 300 7200rpm 16MB cache
160GB Maxtor 6Y160M0 ATA Device Hard drive
** Geil Value DDR2 2.0GB PC6400 Dual Channel memory kit (2 x 1GB) 800MHz
(5-5-5-15) +Aluminium heat spreader, ATI Crossfire Ceritified
NON Raid

The two hard drives are partitioned as C/D/E/F on Seagate and G/H on Maxtor
When transferring data from one hard drive to another (eg F to H) it has now practically come to a sudden halt.
Usually it will transfer 1 GB in less than a minute.....now it is taking over an hour.

If I transfer data on the same hard drive (Seagate) eg D to E that will transfer quickly.
The problem all of a sudden seems to lie with the secondary drive (Maxtor).

Is it on the way out or can anyone suggest anything that might have changed making it run so so slow or any tests that i can run?

Many thanks



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