This may be a pain to do:
Has it uploaded pics from the camera before with no problems. [?]
If it has,just uninstall all the software for the camera that's on the PC and then re-install it.Then try it.
I have "tweaked" my PC and found some of the things that worked perfectly before my tweaking didn't work after. [

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All i did was uninstall/re-install and all was fine.
Failing that buy a Polaroid camera and a scanner. [

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