Hi there. Trying to figure out a problem. Running Win 8 Pro, 64bit. I recently installed an upgrade of my BIOS. At first it took several tries to boot into Windows. That is now solved. What remains is the fact that when I wakeup the system from sleep, it only displays the pre-login screen (greenish, with the tower). It freezes right there. Thinking this might be a display driver issue, I updated it (Radeon HD 6480G). That didn't fix the problem. On some forum I read about a SAM file. My question is: How does it find it when I reboot, but not when the system goes from sleep to wake up? At any rate, how could that be fixed? Also, I don't know how to revert back to a former version of my BIOS. Have no idea where to find that info. My laptop has an Insyde board, and it went to version F.48, what ever that means. Thanks in advance for your ideas.