New 3rd HDD not working properly

[gwp99]

I currently have an 80G IDE (boot) and a 250G SATA, DVD ROM and floppy drive.

I recently purchased a WDC2500JB 250G int HDD as a 3rd HDD - however, it appears to be unstable. This is the 2nd one as I returned the 1st thinking it was the HDD.

It will not play video files properly - the same file will play fine on either of the other 2 internal drives - audio files play fine. Most times the screen fills with pixel boxes and at times the video file chokes the player (Win Media player 10, zoom player). I have also ended up with corrupt folders after copying complete folders from my backup ext drive.

I have checked all cables and virus scanned the entire system as well as defraged and chkdsked all my drives - (I get some errors with chkdsk the odd time on the new drive).

Can anyone offer a suggestion as to a solution (or cause) - I run XP and have SP2 installed although this problem existed before I installed SP2. BIOS is up to date.


Thanks in advance for any help
Gerry