Well, I don't know if this is the direct result of it, because I didnt set this up with Shipsim in mind actually.
but.. (and this is in Win7 btw)
I goto start -> and I run 'msconfig' (or you can do windowskey+R and type it there)
Then on the 'startup' tab, I go to 'advanced'.
And there, in the upper left hand corner, I selected the manual setting for number of cpu's and have put it to 8.
As I said, if I start the pc, there's very little activity, and I then start SSE and a bunch of the 8 cores start doing their magic, as seen in the system popup, then it has to come from somewhere... and I don't reckon that background stuff that only needed 'just above idle' on one core, suddenly needs 5 cores operating like they do then.
But hey, I might still be wrong. All I know is that Vstep indeed said, SSE was using multiple cores in 'some places'
Now, I don't have the specifics about that, to be honest.
Fred.