Looking on the comment's page for this game Giveaway I'm not the only one with the same problem. Seems when running the game the bricks are invisible. It doesn't seem to be a OS problem. From the comments it's on both Vista and XP. If others are having the same problem please post and include:
Operating System & Version.
What Video card
what processor
anything else that might help in finding out the problem.
I'll post back if I find out a solution.