Quote - I wish I did. My Seagate 1TB does the same thing if I try to boot up my XP machine with it connected.

At least you can access your files.  My Seagate worked fine until I loaded about 500 gigs of files onto it and now it will only show up in "My Computer" if it's been unplugged and disconnected from my computer for a period of time. However, it doesn't show up for very long!  Everything seems to go well and then I start getting little pop up messages from the right lower corner of my toolbar indicating that this file and that file can't be saved. All the files have symbols like &$% in them.  And after that while the device still shows up in My Computer until the next time I reboot, but none of the files can be accessed even though I can see them.  Weirdest thing I've ever encountered!

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi