Thankyou, once again, Martin. I didn't understand what an .RAR file was. One of my friends educated me, and I've extracted the MSHTMLED.DLL file, and replaced mine with yours. Unfortunately, it hasn't had the desired result. When Outlook Express fails during opening, it produces an icon (not sure what these should be called) which gives me a choice of closing OE or looking at the fault details. What I had noticed, is that when Outlook Express fails, and having dealt with the "Close or Details" icon, if I click on the 'x' in the top right-hand corner of the OE window to close OE, it comes up with the same "Close or Details" icon. If I look at the details this time, the fault has changed slightly in that "MSHTMLED.DLL" has changed in the message to "MSHTML.DLL". Does this give any clue to my problem? Regards Graham