NVIDIA Proprietary drivers not working in Ubuntu 12.10

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http://askubuntu.com – I tried all proprietary drivers for my NVIDIA GTS450 graphics card, and after rebooting my PC, i get a very low resolution, and no desktop environment. I've tried the experimental 304 version and both other available versions as well. I am wondering if it has to do something with my PC, or the drivers haven't been optimized to support 12.10 yet? (HowTos)