Right-e-O, here's what i've found out:

 

1. Uploading a file via the Uploader causes a full page refresh, not a postback - is this by design?  

 

2. Removing the updatepanel fixes the initial problem - kind of

 - files get uploaded and displayed fine

 - because its not a postback, i'm losing all form data in the process

 - because its not a postback, its hard to know which panels to display (its a wizard type form with 3 panels) 

 

 

SO, i'm guessing the updatePanel solution is erroring out cos its receiving a full page refresh data instead of just postback data... though i dont know how to confirm this.

 

Please, you guys know this control better than i do... help put me out of my misery, pretty please?

 

thanks

greg