CCS licenses UPGRADE遇到的问题的解决办法？

去年11月收到信Product Description: CCSTUDIO Code Composer Studio IDE - Platinum Node Locked Single User (N01D) - Download Only / NO DVDs
New Version Available: v5.1
·       Go to www.ti.com/myregisteredsoftware
·       Find your row for TMDSCCS-ALLN01D-v4.0
·       Click MANAGE and then click UPGRADE – GET NEW LICENSE
·       Click E-mail license - you will receive two (2) emails: Instructions and License File with attachment (.lic)
·       You MUST follow these instructions to save this new License File (.lic) before you can use your upgraded version 5.1
What’s new: This release will contain a significant number of improvements over CCSv4, including a simplified user interface, faster debug launch time, Linux support and many other features.  For more information on CCSv5 please visit the TI CCS wiki.
If you have any questions, please contact ccs_subscriptions@list.ti.com
今天想起来试一试CCS5，可是遇到错误，提示There is currently a problem with the Part Number being Activated. Error Number 10038. Click here to contact us.
不知道是啥情况？请专家给说说。