Cheers all. Some good tips there that I can try out. Larf, I'm using PS 7.0 on my pc - although I'm not sure of the exact specs, it IS quite old, bought it second hand about three years ago. I have a SCSI disk that I've set as my primary scratch disk, but again, don't know how big it is - I'm not really a techy person!
All I know is if I'm working on an image that's bigger than A4 at 300dpi or more (in rgb/cmyk), it does tend to get a bit slow, especially if you start playing around with layers.
Can anyone tell me how to post images on the board? Do they need to already be online?