Yahoo Finance Headlines RSS Map Error

[gStormcrow]

I am pulling RSS news headlines for companies from Yahoo Finance.
I have code that runs perfectly on my home pc, but is giving an error on my work pc.

Home computer: Windows 7 and Excel 2007
Work computer: Windows 7 and Excel 2010

Error message when code is run:
Run-time error '-2147217376 (80041020)':
XML Parse Error

The error is with this code:

ActiveWorkbook.XmlMaps.Add( _
     "[URL="https://feeds.finance.yahoo.com/rss/2.0/headline?s="]https://feeds.finance.yahoo.<wbr>com/rss/2.0/headline?s=[/URL]" & ticker0 & "&region=US&lang=en-US", _
     "rss").Name = "rss_Map"

Note that ticker0 is a string with the company's ticker, and this code runs perfectly on my home computer.

On my work computer I have tried to map the RSS feed without running the code by doing this: pressing the XML Maps button on the XML Source sidebar -> Add -> paste the URL into the File name.
When I do that, I get this error: Cannot load the specified XML or schema source.

Also, I get the same XML load error on my work computer when trying to map some other RSS feeds (other than Yahoo), like this one:
http://rss.nytimes.com/<wbr>services/xml/rss/nyt/US.xml

Anyone have any ideas about what is causing the errors on my work computer?