Browse this and try what they suggest
I have installed the above and am getting a notice "You currently have Adobe photoshop primary Scratch and Window's primary paging file on the same volume which can result in reduced performance. It is recommended that you set Adobe Photoshop's primary Scratch volume to be on a different volume, preferably on a different physical drive."
I dont know what a primary scratch file is, how to find it, or how to move it to another drive .Can any one advise?
Win XP Prof 120 &10 gb hd drives. AMD Duron 650MHz