Hi Guys

I recently bought a HD Western Digital My Passport Essential WDME2500. The reason I bought it was so that I could transfer files from a Windows-computer (XP) to a Mac (Leopard).
The external harddisk works great on my mac, but I'm having problems using it on my Windows-computer. When I connect the harddisk everything seems normal, Windows is registering the harddisk and says that it working correct, but when I open 'My Computer' I can't see the external harddisk, therefor I can't use it. The WD should be compatible with both Windows and Mac so I'm confused.

I've tried everything, but i can't seem to solve the problem. Does anyone know this problem, or know how to fix it?