I am having problems with some Emails which Outlook 2003 asks me to right
click to download the graphics. When I do this I sometimes get just red
crosses in the various boxes.

I have found that if I open Internet Explorer, go to Tools Options
Security and click on Reset all Zones to Default Level I can then go back
to the Email message and a right click will open all the graphics.

I do understand that Outlook is trying to protect me from opening buggy
messages - but it is frustrating when a known safe site cannot be viewed in
full. The mystery is that after resetting IE Security to default settings I
can open any number of Emails without a problem - but after I reboot my
computer the problem returns and I have to reset IE all over again.

Is there any way of curing this behaviour?

Windows XP Home SP2
XP Firewall
Internet Explorer 7
PC Guard Anti Virus
Outlook 2003