Multiple tabs in IE7.

HP Pavilion
Pentium Dual Core E-2200 (Conroe)
PC2-6400 RAM 4GB
Windows Vista Home Premium 64-bit

After using IE7 for a short while, I try to close the browser.
Rather than closing, it starts opening multiple tabs of the last page visited. 15-20 before you can get them closed. More keeps on coming.
Only alternative is a restart of the machine.
MalwareBytes, SuperAntiSpyware, Avira AntiVir all give the "All Clear". SpywareBlaster has not thrown out any warnings either.

 

#1 Enable tabbed browsing is checked. In that list, 1,3,5 are checked.
Always open pop-ups in a new window is checked.
Open links from other programs in a new tab in the current window is checked.

#2 Goes straight to Google search page.

#3 Helpers installed are Shockwave Flash Object
Jave plug-in 2 SSV Helper
Yahoo Toolbar helper


Doesn't occur every time. All are now disabled, so will run and see.

 

Haven't tried closing yet, but keeps requesting for at least 1 of the add-ons. Probably the Shockwave Flash Player.

 

Posting this from Opera.
Have been using IE7 with no add-ons, but when closing the browser just now, got 20 new identical tabs in less than 10 seconds.
Don't have this problem on my XP Home machine with IE6.

 

None installed because I don't do hot-key.

 

Now I take it seriously.
Was just an annoyance, but happened again last night while on Facebook, so I
shut the machine down.
Upon restarting and going back to Facebook, I had a bad surprise.
More than 1/2 of my friends list was missing. That also affected several games I play on Facebook.
Lost a lot of neighbors in Farmville, and a lot of my "Family" in Mafia Wars.