HTTP Error 400: Bad Request - Blackberry Browser

I've setup a site that works from any PC based OS.  I can access it without any issues.  Yet when access the site via the blackberry browser I receive the error "HTTP Error 400: Bad Request".  When going to the details tab it says.  "Unknown host websitename:80"  This is bizarre since on the same machine and with the same IIS configuration I'm able to access another site that works fine.  The only difference is the ASP.Net version.  The site that works is running the framework 1.1 while other site is a 2.0 site.  

Additionally I have followed these directions to see if this makes a difference which unfortunetly it hasn't: http://www.codeproject.com/aspnet/BlackberryASPNET.asp

One other unusual thing is if I switch over to the blackberry's alternative "Internet Browser" the page loads but there are javascript errors.  

Really stumped here and I wouldn't qualify myself as an advanced blackberry developer.  I've googled but have not found the magic solution to the problem yet.  Any help would be much appreciated.  
edenrockstarAsked:
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edenrockstarConnect With a Mentor Author Commented:
The internal DNS that my company used didn't have an appriopriate DNS entry setup which explained the error on external blackberry devices.
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Kurt_BraeckmansCommented:
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edenrockstarAuthor Commented:
I am realizing after further investigation that this may not involve asp.net but rather the particular DNS that I am using.  The message under the details tab of the 400 error message is "Unknown host websitename.com:80".  I'm unable to view any content whether it be a static html page or just loading an image to the browser.  

I have found this article that this may have something to do with a firewall or filtering on the network that the DNS is being hosted by.  

http://www.blackberryforums.com/blackberry-network/2045-http-error-400-bad-request.html
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modus_operandiCommented:
Closed, 500 points refunded.
modus_operandi
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