When exiting Internet Explorer (Version 6, then Version 7) I get the following error message "The instructions at Ox6c371351 referenced memory at 0x00000004. The memory could not be read". A few months ago, I found a solution on the inet and saved it to a pdf file. Now, I cannot find that. I do remember that the solution had to do with timing in the program and deleting "add-ons" and inactivating something else (a service, I think) solved the problem. Now its back. I have used Memtest86 for 7.5 hours (13 passes) and my memory checked out OK. Anyone had and solved this problem?