My laptop has been infected by the “system check” malware described on other threads in this forum. After following Julio's instructions, things were looking pretty good; however, upon connecting to the internet to post the logs, another (perhaps related) malware seemed to take root. This second variant mimicked the windows security center, advising me to “upgrade to a full version of vista security” in order to get rid of supposed trojans. At this point both IE and Firefox were subjected to redirection, so I disconnected from the internet and ran the whole process a second time. The logs below date from this point. It may not be relevant to the issue, but an additional problem is that program shortcuts and icons no longer function properly: to get a program to run I now have to right-click and select “start” in order to get them moving. I appreciate any and all assistance and thank you all in advance!