We have been using the UploadAttachments control in our application for uploading images into a SQL Server database.

This has generally worked fine but we have a client who has reported an error. When an attempt is made to upload multiple images, an error occurs and an IE dialog is shown with the error 'Non-negative number required. Parameter name: count'.

The problem only occurs on a group of computers in that location. Other computers connecting to the same application on the same server don't experience this problem. Unfortunately, we can't reproduce this problem on our development machines either.

I suspect this problem is related to the version of IE that the client has (IE 6 version v6.0.2900.2180.xpsp_sp2_gdr.090804-1412)

Has anyone else here come across this problem or are there any known issues that have been reported against this particular version of IE?

Any advice that anyone could give to help us further diagnose this problem would also be much appreciated!

Thanks
Tim