I am trying to install Sims 2 on my MacBook Pro and every time I try I keep getting a message that says:

"The Sims 2 requires at least 1MB of free disk space. Free up some space on your local disk and then re-launch The Sims 2."

I checked my hard drive and I have 100GB of space left. I don't have any other programs running. Does this mean something is wrong with my game or is something wrong with my computer...or am I missing something really obvious?

If anyone can give any help I'd really appreciate it. Thanks a lot.