My PC: OS - Windows 7 Ultimate Case - Rosewill CHALLENGER Black Gaming ATX MB - ASUS M4A79XTD EVO AM3 AMD 790X ATX CPU - AMD Phenom II 965 Black Edition 3.4Ghz PSU - CORSAIR CMPSU-750TX 750W RAM - G-Skill Ripjaw Series 4GB DDR3 1600 x4 (16GB) HDD - Seagate Barracuda 7200 1.5TB GPU - XFX Radeon HD 4850 Display - ASUS MS238 23'' LED (Primary) Display - VIZIO E-Series 60” Razor LED™ E601i-A3 (Secondary) 1st off my build is now 2 1/2 years old now (built Feb 2011) I used to have a serious blue screen issue when I 1st built it and it took forever to figure out what was causing it, basically I had my ram speed set to high. I have not had any persistent issues since Feb - May of 2011. Now recently I have been noticing more and more frequent BS's, but only when I am actually using my PC it is on 24/7 and I have program/games running all the time and I never wake up to a PC that has rebooted. I have no idea if this has anything to do with it or its just a fluke but the last 3 BS's have happened while browsing the internet 2 of which happened the exact moment I opened a new tab. I get the message Driver_IRQL_NOT_LESS_OR_EQUAL. That is all I really know about them, I have included the last 5 dmp files which are not very frequent but very annoying, any help will be greatly appreciated! I've posted this on a different forum and was not able to pin point the exact problem. Things I have noticed, this might sound REALLY weird but all of the recent BSODs has all been while using mozilla firefox and WHILE I am checking my hotmail. I will be adding my most recent .dmp files, if anyone can pin point this it would be so awesome!