Hi,
Best thing is to copy an existing framework page and editing it.
If you created it from scratch ,see all properties are configured correctly as in guide:
http://help.sap.com/saphelp_nw73/helpdata/en/48/1d5b9a71364269e10000000a421937/frameset.htm
specifically the "Element in framework page" property for the page itself.
Regards,
Tal
