There is a new hotfix available for SAS Add-In for Microsoft Office 4.3.
http://ftp.sas.com/techsup/download/hotfix/HF2/C46.html#C46001
Note that this hotfix can be applied only to installations that have a release number of 4.305.
(In August 2010, we released version 4.3. In September 2010, we released a "refreshed" version that includes the localized versions for a number of different languages -- that version is labeled 4.305. There is no functional difference between 4.3 and 4.305, but you must have the 4.305 version to install this and any future hotfixes. Contact SAS Technical Support if you have questions.)
To check the label of the version that you have, you can use the "ViewRegistry Report":
http://support.sas.com/kb/35/968.html
Chris