Hey Everyone, First time poster, good stuff on here so far. I haven't sat and read threw all 41 pages but Ive read about half and I haven't been able to remedy my situation yet. I installed a 780M in my 2011 M17xR3 today and everything went fine with the install.. and the company I bought the card from ensured me of a quick easy install and turn around. Unfortunately it doesn't ever happen that way and I can't seem to get things straight. I'll start from the beginning, installed the Modded A12 bios update no problems, disabled the Internal audio and video cards, switched to PEG and all that. Restarted the pc and removed the integrated video drivers, all audio drivers, and all nvidia drivers. Re-started the PC to shutdown properly and realized drivers started installing themselves again, so i quickly disabled the wireless, then disabled the auto detect and install of drivers from windows. removed everything again that reinstalled. restarted and shut down. Installed the card. Started back up, went to install the video driver on there website, the 347.09 driver I believe. Did the custom install option, did a clean install and 20 seconds into the install I get a windows security popup for cannot verify publisher, so i continue with install anyway.. and installation fails no matter which way I try it , normal mode, safe mode, disabled driver signing mode with the F8 boot screen.. This is where I'm at.... I have downloaded the video driver 347.52 that J95 has posted on his install guide on Page 23, but that install is also alittle different then what I did,, so i dont know if i'm missing a few things or what. Any help with any of this would be greatly appreciated. Thanks!!