Image brightness

I've recently gone on to Photoshop 7 from 'old faithful' Photoshop 4. Photo images appear much darker (photographically speaking about a stop) than they did in P4, or in my batch browsers or in trial versions of Elements or paint Shop Pro that I have tried. It only seems to apply to P7. I can't find a way of altering this without messing up the display settings. It does cause a problem. Any thoughts anyone?

hmm..... I only uses photoshop 6 but I think it's the color setting man. Go try to change color setting or preference or whatever in photoshop then see