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A bug introduced with the release of SmartDraw 2008.20/21—available for download between: January 12, 2008 to January 24, 2008—caused some installations of SmartDraw to reject valid serial numbers resulting in the following error message:

If you did not download or purchase within this time frame, this hot fix is not needed.
If you think you might be affected by this problem, please download the hot fix here (4 MB).
If you receive a message that SmartDraw is in use while running this hot fix, make sure SmartDraw is not running and/or try restarting your computer first and running the hot fix.
If this does not resolve the problem, please contact us at support@smartdraw.com or call 1-800-817-4240 or 858-225-3300 to speak to a support staff member.
Please have your order number or serial number ready.
Live Support is available Monday through Friday 6 AM to 5 PM Pacific time, and Saturday and Sunday 8 AM to 2 PM Pacific time, except major U.S. holidays.