I am having a play around with our website and am determined to add an address bar icon. I have read up various ways to do it and am convinced that I have the code right. I have also placed a 16x16 icon in the root directory, which can be viewed here......

http://www.ap-tuning.co.uk/favicon.ico

However, it still doesn't work. All I can see wrong is that sometimes if you open the link above, the logo doesn't display immediately and you have to either refresh it or click 'show picture', before it will work.

What am I doing wrong??!!