I have been happily using an original Canon EOS 5D as my camera of choice for about six years now. Six years of trouble free digital photography. Until now. Until I purchased a new laptop which came with Windows 7 at which point I discovered that the driver for the EOS 5D is not supported by Windows 7 and Canon has no intention of producing one.
This basically means that the automatic selecting and transfer feature which I have long accepted as a basic feature of using a digital camera no longer works. It also means that the ability to use the remote shooting feature through the laptop is gone as well. In practice I now have to use a card reader to select and transfer pictures from the camera's memory card to the laptop. It still works but is less efficient or convenient. There appears to be nothing I can do about remote shooting. (There were some highly technical work arounds but they were beyond my technical comfort level and appear to be even less convenient than using the card reader.)
It is very disappointing that Canon has no interest in supporting a camera that still enjoys widespread use and which I still hope to get several more years of wear and tear out of.
I've been drooling over the EOS 1D X as either a replacement for or an addition to the 5D but am now having second thoughts. It's a lot of money to invest in something which I expect to use for far longer than Canon apparently is willing to support that usage.