Hi:
If you search (at support.sas.com) on the exact error message "DDE session not ready" you will come up with many hits on possible causes for this message.
Alternately, if you have an urgent need for Tech Support, you can open a track with Tech Support by filling out the form at this link:
http://support.sas.com/ctx/supportform/createForm
cynthia
(To search on support.sas.com, look in the upper right-hand corner of the support.sas.com site in your browser where you see the words "Welcome" and "(Log out)". Immediately underneath that small banner is the search box.)