Since getting IE7 several months ago I would periodically get where all of a sudden Explorer would lock up or quit responding and all of the open pages would turn white. After several moments they then would return to normal. After the last Windows update this week, IE is locking up quite frequently and taking several minutes to start responding again. This is very frustrating. During this time, I have had very few pages open or other programs running, so it shouldn't be a memory challange. Is there anything I can do to solve this?