"B.W." (del xxx) wrote in message
...
In some emails I am getting the message 'some pictures have been
blocked to prevent the sender from identifying your computer' what's
going on here?

Read http://en.wikipedia.org/wiki/Web_bug.

Is it one of my my security settings

Yep. Did you look? What did you find that looks relevant to blocking
Internet (i.e., external) content?