When I loaded up my PC this morning, MalwareBytes told me that there was a new version available and to update. I did this and i was then told that my definitions were 9 days out of date. I updated them and then my problems started. I had multiple hangs, and fewer and fewer programs loaded in the systray each time. Eventually I got into Safe Mode and disabled Google Talk and MalwareBytes, as these two seemed to be loading when the errors occured. This still did not fix the problem and I took the drastic step of formatting my C: Drive and reinstalling Windows. Everything worked great until I reinstalled MalwareBytes 1.5.1.1800 and I got the same problems I had before the format. I don't believe I'm infected as I run Avast! Pro, MalwareBytes Pro and Microsoft Security Essentials. As far as I can tell, my system was good until the 1.51.1.1800 update. I have run mbam-clean and reinstalled MalwareBytes and it's still not working. I'm running Win7 64-bit Any help would be much appreciated.