Drive access problem

Alright, I can't access my D: drive.

This all started today when I turned on my computer and the hard drive light continued to flash even though all loading was done. When I tried to got to My Computer, it went unresponsive at first, and the D: drive had some how mysteriously renamed itself to Local Disk when it had previously been named something else.

I ran Spy Sweeper and it found something called Trojan_backdoor_zubox_1.

I imeadiately removed the Trojan with Spy Sweeper. However, my computer is running slower than usual, My Computer is a bitch to access and when I try to access D: (after fighting with My Computer to work) it says something like "Cannot access D:. There is an I/O device failure". However, the system says that the hard drive is healthy and functioning properly. I can access E: which is on the same hard drive as D:.

Can anyone help?

(And yes, I'm using Windows XP)

Could be a corrupted partition table, could be that the area of the drive that your drive D: occupies is damaged and suffering CRC errors (the "I/O device failure" message is one I've come across before when a hard drive is suffering read errors). The prognosis does not look good, IMO. I doubt the discovery of the possible trojan has anything to do with the hard drive failure - it could have been lurking there weeks or months, and it was only the hardware failure that prompted you to run Spy Sweeper.