That may be too much for your system. It doesn't leave much for the operating system, services that are running in the background, and for some tools, brushes, and filters in PS which rely on using memory outside of that which Photoshop uses. Try dropping the PS memory allocation to 60% and see if you notice any improvement.
When I use a lot of layers, or make heavy use of the healing brush, PS slows considerably at some point. Using less memory for PS gives better results. YMMV Shel "You meet the nicest people with a Pentax" > [Original Message] > From: Boris Liberman > I allow PS to take 85% of my RAM... The amount of other stuff running at > the same time is minimal.
