If your using AVG Anti-Virus 8.0 (Free) you may receive the error "A .bin file is missing". To fix this, download this file from AVG. Then go into AVG's update manager, then go to tools, then update from directory.
Select the directory you save the previously downloaded file to and voila. Problem solved.
It seems AVG Anti-Virus had some problems with their recent updates that is affecting many users.
If you don't use AVG Anti-Virus, get it!
Don't forget to subscribe to John's blog via email. This will notify you of all blog posts on web design, web development, social media and the odd post about PEI. Just enter your email address in the box to the left.