I put MSE on my Windows 7 64bit because I wanted to use a 64bit antivirus. I've got a 64bit os so I want to use 64bit programs.
With MSE on 7 64bit, I noticed that I wasn't having any problem with Opera.
http://my.opera.com/community/forums/topic.dml?id=633812So, I put MSE on my XP system. No Problem.
I like avast!, but not enough to give up Opera.
I think the problem is totally with Opera, never with any other browser.
I think vlk should get with the people at Opera to work on a solution.
BTW, I've gotten to like MSE better than avast!.
Back when I was with avast!, occasionally scans with mbam or SAS would find something.
Now Mbam and SAS don't find anything.
My conclusion is MSE is better than avast!.