Hi Edmond
Sorry for the problem you are having.
I am looking into this memory related issue now. But please can you follow the steps below to see if this resolve the issue. There has been a major release and this should resolve it I hope.
Please can you uninstall the add-in completely first and then reinstall the new version so we are on the same code base. The new version is a major upgrade and I hope this will resolve the issue..
Here are the steps I would suggest
(1) Uninstall the Add-in from your windows control panel (add/remove programs)
(2) Step (1) will remove the add-in but please also delete the application folder (which holds support files - as usual with windows uninstalling the add-in wont remove all the files so please delete the entire folder so there is no trace on your machine.
(3) got to the downloads page on the site and download and install the new version. There is a link that is labelled "DOWNLOAD CURRENT VERSION" (towards the bottom of the page) and you should use this link as the add-in is in the queue with download.com still so you cannot download from there yet (few days more..) So please download from this link ("DOWNLOAD CURRENT VERSION"

(4) Open Excel and see if all is ok now.
(5) If you still have the problem, look in the application folder (default is :C:\Program Files\SQL Excel\ and you will see the error log in there (file name is SqlExcelErrors.log. Please can you post the contents of this file up on the forum and I will check it.
Please let me know how this goes.
I am going to try to replicate your issue (using the Traditional Chinese version language pack on 2003) but I am hopeful that this will resolve the issue.
Please let me know and thanks very much for reporting this issue.
Al