Critical Ext.HDD issue

Hi all,

I recently bought an external USB 2.0 HDD,ST Lab casing
and Toshiba 3018GAS disk but am experiencing some
problems with it.

I can format the hard drive on a machine with Win2000 or
XP using USB 1.1 port. I am able to read and write on
the disk connected to different machines.

But, whenever I connect the HDD to my laptop(Asus L4
series) with WIN XP, using USB port 2.0 I loose the
partitions and all data on the disk. Afterwards I am not
able to use the HDD on any other computer. I have to
reformat the external drive again. The starnge thing is
that I am not able to format the drive on my laptop. It
gives me the error message:

format not successful and register an event in
eventviewer:
Source:LDM,
EventID: 2

and another one stating:

The file system structure of the disk is damaged and
unusable.
Source:Ntfs
EventID: 55

I have tried to find a solution to the problem but to no
avail. Have you ever encountered such an issue and how
was it resolved? I would appreciate any advice.

Michael