I just received Myst URU Complete Chronicles.

It will not load or run properly.

With Avast! on, loading stalls with cyclical redundancy errors. With Avast! off it seems to load properly but when I try to run it I get a Macromedia error. I tried it on another computer with different video and audio and get the same results. I tried various "compatibility" settings but none helped.

Suggestions, please.