Hi,

 

It's great that you have found a solution to fix it.

 

 

AjaxUploader adds the Flash/Silverlight support to let upload be more powerful.

 

In your case , I think because there must be a server error , and the the client can't catch the error in Flash mode.

 

So you can specify UploadType="IFrame" and try again.

 

 

Regards,

Terry