General Hotspot issuse

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http://androidforums.com – When I use the hotspot feature on my phone It doesn't seem to work at all with my window7 but when I boot into Ubuntu it works flawlessly (my sig comes from speeds posted with my hotspot) does anyone else have this issue, or a fix to it? well its not that I need it to be fixed (Ubuntu is amazing) just would be good to know incase I do need to fix it. (General)