i fgured out what the issue was. there's a box at the bottom that says show options that the cmputer thinks will work. if you uncheck that, you can select ps. i'm still in my trial period, so the pro vs lite didn't apply.

a 20 layered 10 mp file should only be about 200-300 mbs, which ps could ...

oh, and you didn't say if there's a way to save the files as a layred photoshop file which i can edit later. thank you!

i wish i could, but that choice is greyed out. in fact, it greys out pretty much everything in my apps folder- all the ps's (older versions). thoughts?

just downloaded the sample version the other night on advice of another person whos photostacked (but is pc and used a different program). am running it for the first time to see if i'd like to buy it. i had trouble keeping my images perfectly lined up as i'm doing handheld. anyhow, even after ...