2 Questions:

1) There is the option to set up to 4 scratch disks, is this really necessary?? I only set up a primary and leave the others blank. I edit on Premiere so have a dedicated cache/scratch drive which stores all premiere & photoshop cached files.

2} Dumb question, I have 4 gigs of physical ram, and the page file on my cache drive is sytem managed, as far as i know photoshop can make use of 2gigs, so in prefs should i let it use 100% of the 2 gigs ram (that photoshop sees) available?

1. The options are there for those with multiple internal hard disks. In fact Ps will run quite happily with one. It can help to have primary scratch and Windows paging file on different physical drives.

2. The usual advice is to set Photoshop to 55%. Experiment with different settings above that to see if it makes things faster.

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