Hi,

 

When the ajaxuploader try to load Flash/Silverlight , it would disable the button temporary.

 

It seems that the Flash/Silverlight are not able to be loaded by an unknown reason in the IFrame.

 

Can you make a very simple iframe page to test it again ? maybe some other code cause that problem.

 

BTW , you can use UploadType="IFrame" for that problem , but it would not have the advantage of the Flash/Silverlight mode.

 

Regards,

Terry