<img src> tag in dynamic text fields

Okay so I’ve set up a dynamic text filed to read from an external text file, and to except html tags, so I can get links and text formatting tags to be recognised, but I don’t seem to be able to use the <img src> tag to display images

for example I have this at the top of the txt file:

<img src=‘http://www.google.co.uk/intl/en_uk/images/logo.gif’>

(it was an easy image just for reference…:wink: )

But it is not displayed…

Any ideas?