Hello, I just built a new desktop PC and am sporadically getting blue screens. At this point I am thinking that my ram might be the culprit, but I am not absolutely certain because I am noticing a pattern that is a bit strange. When I get blue screens, I get the error message: "Stop: 0x00000050". Thinking that the ram might be the problem, I ran memtest v. 4, which immediately turned up thousands of errors. However, when I ran memtest later on for about 6 hours, it didn't come up with any errors. Also, whenever i have been running memtest for a while and then go back into Windows, my PC runs flawlessly for hours (no blue screens). It is only after I have shut down the computer and then restart it the following day that I begin to get blue screens again. Is this a problem with the ram, or could it be something else? Why would running memtest, and then booting into windows actually make the computer more stable? Thanks for your help.