Hello,
Try these steps:
1) Close the Symantec Endpoint Protection Manager
2) Go to services.msc and stop the Symantec Endpoint Protection Manager Services.
3) Close the Services window
4) Browse to : C:\Program Files\Symantec\Symantec Endpoint Protection Manager\bin
5) Run the upgrade.bat
6) Follow the steps.
7) Login to SEPM again and try exporting the packages again.
When you are taking a Remote Desktop, is that in Console mode??
Check this Article:
How to install or manage Symantec AntiVirus and Symantec Endpoint Protection components through Remote Desktop
http://www.symantec.com/docs/TECH104331
Hope that helps!!