Hi Behnam, glad to see you got things sorted, it's always really satisfying when you fix a problem without any help.. Just to let you know that there is a few updates available from MS which are specifically for IE although you have to get them yourself from the main update site. Which is here:
Microsoft Download Center: Windows Vista
I will mention however that SP1 is due to be released sometime in Jan 08. This will include all the updates released for Vista, so if you can't be bothered to trawl through the website just wait for that.
Have a Happy New Year..
kemical

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