Blogger currently has a fault that seems to affect IE8, FF3.6 and Chrome 4.0. In fact, there are a couple of things that just don’t seem to work “out of the box” at the moment and need to be hacked to get some level of usable functionality:
Access Denied Error - http://www.blogger.com/static/v1/widgets/185422768-widgets.js
This causes all kinds of mayhem in IE8, FF 3.6 and Chrome 4. The workaround while the fix is being figured out is to add the following to the head section of your blogger template.
Blogger Comments captcha verification not being displayed
Add the following line into the templates style sheet to enable the captcha panel to be displayed.
Hope this helps….