Firewall/Proxy problems?

When I first start the program I get this error:
Sytem.Net.WebException:The remote server returned an error:(407) Proxy Authentication Required.
at System.Net.HttpWebRequest.GetResponse()
atXBMC_Media_Companion.Form1.loadwebpage()

Is this due to a proxy server being used? Would it be possible for the program to look at browser connection settings and use those? Or could a "tab" be added for connection settings?
Other than this a FANTASTIC!!!!! program.
Thanks for the help,
Rick