Silver Springs, Stevie and Mick

[Ghost_Tracker]

HEY, guys -

There's something I'm wondering about -
What was the big deal over the song "Silver Springs," between Stevie and Mick? I read yesterday a quote from Stevie - she had apparently wanted to do Silver Springs on one of her early solo tours (maybe Bella Donna or Wild Heart), and she had someone contact Mick, and apparently he said something like, "Over my dead body will she be getting that song from me."
And that, of course, was a source of uhm, err, tension between them.
The thing I really don't understand is -
Wasn't Stevie doing "Dreams" on stage during her solo tours? At least by 1986, 1987 or so? ( for example "Live at Red Rocks." )
So if she could do "Dreams," why not "Silver Springs?"
I seem to remember that Mick had also said something to Stevie, during their big fight in the parking lot when he told her that the song was being taken off of "Rumours," along the lines of, "It's for obvious, multiple reasons."
What's the big deal with Silver Springs, compared to other songs Stevie wrote for Fleetwood Mac???