Prob not the same, but after 4 and a half weeks I started mine, and it was Idleing at 1800rpm, when free wheeling up to lights etc it would hunt.
Eventually the check engine light came on, when the revs dropped back to normal but was running lumpy after about an hour it went off.
I was down at S and S today to get the prodrive bump stops fitted as they forgot to order them when they changed both my front struts under warranty where they told me it was just the idle control valve and not to worrybut if it happened again to "bring it in"
Funy thing was that they tried to charge me 90 odd quid for the work that they did today so they were told where to go as it was them who forgot to order the new bump stops.
Paul I would take it down to the dealer to get it checked, even though it could be nothing (at least it would give you peace of mind)
Graeme