I went through a rather stubborn phase with *buntu and VM`s tech support.
I always called up with *buntu plugged in to that modem to begin with and i had plenty reasons to call during that 06 to 07 period.
I had two or three curiously willing(So curious in one case that he was apparently off to download a live cd by time the call finished) techs over that initial year or so but most wouldn`t even continue with the call if i had to mention Linux.
Eventually i accepted that it was just so much easier to keep a Windows installation(in some way shape or form) readily available.
I always found it strange that if i was paying bills etc i`d get through to a nice Scots/Welsh/English person 99% of the time but anytime my services were acting up i`d get through to Bangalore 99% of the time.
They quite often couldn`t understand my Scottish accent and i couldn`t understand their Indian accents(a lot of the time) and neither of us understood very much about anything else we were doing so it was always good for a laugh if nothing