I returned to this programme after several years (since OS 9) because it was on special and I used to like it so much. I have a 30" monitor on my Mac Pro running 10.6.1 and as soon as I booted the programme, it took over the whole screen, no window size - nothing. OK I could put up with huge letters and graphics but wait there's more. As soon as the programme quits and it returns the Display back to 2560 x 1600 resolution, the whole screen is in disarray - window sizes changed, positions of icons etc all over the place. Whilst the programme itself may be good, the programming behind it is absolutely amateurish. There is no choice of window size, choice of resolution, nothing. If they had offered a demo and I would have seen thisawefull interface I would not have purchased it, even at the special price of US$17.99.