Emulator

What's the problem?
I've been running Super Mario Galaxy off of my Mac. When I collect a Star Bit (Either through the wii-mote cursor or by directly touching it with mario) the game will freeze once the star bit is close enough to be "collected" and added to the total star count.

Dolphin version with the problem
Dolphin r6879-release taken from here: http://livefor.free.fr/Dolphin_Leo+Snow/

(optional) Dolphin version that does not have the problem:
I've run the same ISO off my laptop with Windows 7 that did not have this issue.

Operating system and version:
32-bit or 64-bit:
OS: 64-bit
I belive the version is 32 bit but I'm not sure how to check.

Game ID (as it appears in game properties, Ex.: "GZ2P01" or "RSBE01"):
RMGE01

Build command-line (not on Windows):
Not sure, install image was found on website provided.

Was the ISO a plain dump from disc, compressed and/or scrubbed?
Not from disc, I believe it was compressed.

Please provide any additional information below.
I also have a issue where the "stick" or analog binding i have with my 360 controller does not seem to work properly unless mario is squatting. Not sure what is causing that either.