I have cleared the internet Explorer temporary Internet Files (cache) yet my FSX insists upon reverting back to User Defined Weather. When I select Real World Weather (Updates every 15 minutes) and click OK, I do not get an indication theat the weather from Jepsem is downloading or updating FSX.

 

What does anyone suggest I look at next to fix this?

Go to your my documents\flight sim folder and delete all the file names starting with default flight and last saved flight. Also do you have a firewall software? Maybe it's blocking FSX from connecting to the internet.

Thanks Gear Up and Off never would have thought of that - will give that a whirl and post the results.