I've upgraded to Windows 7 from XP and have Outlook 2007. When sending and receiving e-mails previously I did not need to click on each attached jpeg file to open, they were displayed in the body of the e-mail. Can anyone help with this. My message format is set at HTML.

If picture added to e-mail as attachment, you can only open clicking on it. Other situation, pictures are attached to the body of the message, like Insert\Picture. When you received such mail, Outlook configured to block pictures in HTML content, so you should double click on picture to download it. You can change default settings, open received e-mail with block picture contect, above From field you can find "Click here to dowload pictures.....". Rigth click on it, in the contect meniu find Change Automatic Dowload Settings..., and click on it. Trust Center windows should apper on your screen, next, uncheck Don't download pictures automatically in HTML e-mail messages or RSS items. Other information, you can look here: http://www.office-outlook.com/outlook-forum/index.php/m/426112/#msg_426112