Flash itself running slow

Hi all,

Just bought my new HP notebook with Vista on it

Installed Flash 8 and everything seems to be running smoothly.

However, when (in Flash itself) you doubleclick on a movieclip on the stage (to edit it), the little ‘marching ants’ rectangle opens up before you can edit the movieclip.

It takes like 5 or 6 seconds for the marching ants box to open up - is this a memory issue?

EDIT: I seem to remember it happening in Photoshop too, so it isn’t a Flash problem.