The object was not found - fails to upload

I am using the new version 4.1 Dual of the uploader (upgrading from v3.5) While testing, a client of ours (very large corporate client with professionally managed network) always runs into a pop-up error while trying to upload images. The error is hit while waiting for the Upload Files progress window after initiating upload. Tests done outside of this client's network are successful and the issue has only been reproduced from with-in the client's network.

The client's network may not be able to be reconfigured. Version 3.5 of the uploader currently works with-in the client's network. The reason for the upgrade to 4.1 is for vista support. If you know of no course of action to resolve or fix this issue - can you recommend a possible way to make ver 3.5 vista compatible?

The error message appears in a pop-up titled: Image Uploader

The error message itself reads: "The object was not found."

Bug Report Info:

* What is the version of Image Uploader?

Version 4,1,1,0

* Which OS were you using, when the problem occurred?

Problem reported on several different machines mostly: latest updated version of XP Pro

* Which browser were you using?

IE 6 (latest update w/ sp2)

* Was the problem reproducible? On which machines you were able to reproduce it?

The problem is only reproducible from with-in client's network.

* Does Image Uploader still work when you try our samples (both online and local)?

Tested with the online demo and ran into the same error from with-in the client's network.

Note: We are using the Active X control only.

Note: When testing with the online demo - tried the java applet and it reported a slightly different error message but still fails: "The server or proxy demo.aurigma.com not found."

I downloaded and installed the new version (4.1.21.0) This appears to have resolved the issue.

Thanks for the help.

Ben