Rendering XML output (with large number of columns) to browser breaks

We have a stored procedure in our database which returns a cursor with over 400 columns.  When we call the stored procedure from within the QT (using mode FixedQueryWithOutput), it renders just fine and very quickly in CSV format.  however, when we attempt to render it (e.g. post it) as HTML format or XML format, it takes a very long time to render (even thought the results come back very quickly). 
We are using the following specs:
OS:  Microsoft Vista
Browser:  IE (v7.0)
Java:  Java 6, patch 20 (plug-in disabled)
Any hints/help would be greatly appreciated!

Hi Aaron,
Can you limit the output to a very few rows on the 400 columns you have to render?  It might be a memory or a XML parser constraint on the output client.
Other option: save the XML in a file (WEB area) then try to export & open the saved data with the browser.
This will tell you if  the error is at the client level. Also, you can examine the output easily, offline.
This is practically what I'm doing to analyze XML data transferred to and from SAP using various RFCs.
IE 8.0 never crashed with XMLs having a size of 3Mb or more (approx 60columns, 10000+ rows, 14 different tables).
Paul.

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