Browser

I usually use Internet Explorer 7 for most of my surfing but some sites work better using Firefox. Some of us have been getting this new error message,
Internet Explorer script error: Line 53, Character 3 when trying to close some blogs.

Now Microsoft is offering an upgrade to Internet Explorer. I'm always leery to install an upgrade to anything because I've had some bad experiences in the past.

So has anyone installed IE8 and how is it working?