1st problem:

I had just reacently downloaded the A7 free trial and the WED tutorial.
Wile working on the tutorial I came across the part were I am to insert a camera build and run the lvl. When i hit build the little screen scrolls and then gives me the ok message. I then try to run it and all I get is a little wight screen with the words Installation damaged. Which means what?

2nd problem:

Although not really a problem more of a delema. I am planning to purchase GameStudio I just dont know which one to get. Commertial or Pro. I've read the info on there main site but I couldn't understand what make the Pro version $600 dollars more? or basicly what's so special whit Pro

thanks in advance answers to these questions whould be well appreciated