Cant install printer drivers?

I recently bouught an Epson Photo Stylus R800, and when i plugged it into my machine (running Windows 7 64-bit) the little dialogue box pops up in the corner saying its installing new drivers, then it stops and says it cant? I went to Epson and download the specific drivers, and got the same result. I check Windows Compatability Center, found my model and it says it should install automatically with no extra software needed?

Spoke with a customer services agent from Epson and they said i needed to contact Microsoft, so this is me (sort of) asking you guys, which is the same as asking Microsoft i guess. I really need the printer and i paid alot for it, but i cant use it! Please try your best to help me as i desperately dont want to be passed from Epson to Microsoft then back to Epson again.

Thanks in advance

Dan



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