According to OK! Magazine Hayden supposedly:
refuses to be on the set at the same time as him," the insider says. "She is making it difficult for everyone involved. [Which Panettiere's rep denied].
And as for Milo well:
"He's not going to play any games or stoop to her level," said the snitch.
But think about it: what if Hayden did get former beau Milo Ventimiglia canned, and then the show's producers turned around and axed her as well for being an ungrateful little so-and-so? That would go a long way towards making Heroes watchable again. So yes, Hayden is totally right that NBC should change around it's million-dollar television series to suit the whims of her personal life. Ventimiglia should TOTALLY be fired. Hayden, please throw a tantrum and hold your breath until you turn blue, while knocking over delicacies on the craft service table. We've discovered that's always the best way to make a point.