My SimpleTech SimpleDrive Pininfarina 500GB External USB 2.0 Hard Drive suddenly disconnects a Reconects again....

I found that Windows 7 have this issue and there is a patch for this:
-- Brief Description
You may encounter problems when you move data over USB from a Windows 7-based or Windows Server 2008 R2-based computer that has an NVIDIA USB EHCI chipset and at least 4GB of RAM
-- Link: http://www.microsoft.com/downloads/en/de... I found that Windows 7 have this issue and there is a patch for this: -- Brief Description You may encounter problems when you move data over USB from a Windows 7-based or Windows Server 2008 R2-based computer that has an NVIDIA USB EHCI chipset and at least 4GB of RAM -- Link: http://www.microsoft.com/downloads/en/details.aspx?FamilyID=964205da-1ebf-465e-aa67-1af46f766ed9