Hi,   If the firefox does not install the Flash/Silverlight , the uploader will use IFrame to upload the file.   That requires the user click the button again. the gmail.com does the same thing.   Regards, Terry  

txtchain,   Multiple file selection feature only works for the Silverlight and Flash mode. If the Silverlight/Flash are not installed/enabled in the client PC, the client can only select one file.

No errors when uploading via http://ajaxuploader.com/demo/Large-File-Upload.aspx Niether using modal nor usual ie window.

Hi MattW, Please refer to http://www.cutesoft.net/forums/thread/50581.aspx, terry's topic. If you do not need to upload multiple files at one time, you can try set the UploadType=''IFrame''. Also, if you have installed the Microsoft Silverlight plug-in, it should work too. Regards, Ken 

The user had Silverlight installed on his machine.  He uninstalled Silverlight and the control worked fine.  Not sure that will help everyone who looks at this thread but he's up and running now.  Thanks for the help!

This was meant for the AJAX uploader forum. My apologies. However, I've upgraded from Silverlight version 3 to 4 and it seems to have fixed the issue. Thanks.

Dan,   Does it work on another environment with http:// ?   Can you test other PCs which installed silverlight ?   Regards, Terry

Thanks a lot. Jayesh Goyani

Marty,   The feature of Selecting Multiple files Upload needs Flash or Silverlight installed. Otherwise it will use an Iframe solution which allows you upload multiple files but selecting one file only.   Hope it helps. Let me know if you have any further questions.

  My code: <CuteWebUI:UploadPersistedFile runat=''server'' ID=''upfUserPicture'' MultipleFilesUpload=''false''     InsertButtonID=''lbChangePicture'' ShowProgressBar=''false'' ShowProgressInfo=''false'' UploadType=''Auto''     ItemLabelStyle-CssClass=''uploadedFileLabel'' ...