Sorry for the grammar, I will try to improve it.
The IT department told me that Opera does not support this kind of configuration, at least in this version, Opera 9, but it will be supported in the future, when I don?t know.
I have Windows XP Pro in Spanish, so may be the translation is inaccurate, in IE Tools->Internet Options->Connections->LAN Settings, in the Automatic Configuration there is a checkbox that say something like this: ?Use sequence of commands for automatic configuration? and below is a direction
HTTP://proxy.blah.blah.xxx there is an option in Opera in Proxy settings that say something about an Automatic Configuration, but it doesn?t work, in Opera site there is a part about Proxy settings, and they say that with some Proxy servers based on Windows there a special authentication that Opera doesn?t support but you can disable that in the server or get a bypass with something at sourceforge,
this is the link to Opera page and
this one is to Sourceforge and the script that should fix the problem, but I tried and didn?t work. So if any of you know something I will be pleased if tell me.
I don?t know if I took the correct one, but if someone know, please tell, because it seem to be a lot of this NTLM in Source Forge, I just took the one that had the highest ratio of coincidence in the words, so maybe someone would prefer to type NTLM and search for one, I will keep trying with others, If I have success I will inform you guys.
The original link to NTLM is in the Opera support page, and I'm sorry for the mess that I did with the paragraphs.
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I was wrong the server is a Linux Machine with Debian.