When you recieve an email message as an attachment to another email, you can’t open it. No messages are displayed or anything. It’s probably becuase you have Google Desktop installed. You need to remove Google Desktop and the problem should resolve. It happens with both Outlook 2003 and Outlook 2007.
Dont believe me, try this. Hold down CTRL key while starting Outlook. You should get a dialog asking if you want to start in Safe Mode. Say yes. Now try opening the attachment. It opens? Yes – because Google isn’t loaded. No – Sorry but this fix probably won’t help, however feel free to try un-installing Google Desktop.