Clicking Close in the About window does not close the window

[Christopher Kyle Horton]

Steps to reproduce:
1.) Start Monster Masher.
2.) Click About button on title screen.
3.) Click the Close button in the About Monster Masher window that comes up.

Expected behavior:
The About Monster Masher window should close.

What actually happens:
The window stays open, and won't close until Alt+F4 or the X button in the titlebar is used.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: monster-masher 1.8.1-3ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-11.18-generic 3.0.4
Uname: Linux 3.0.0-11-generic x86_64
ApportVersion: 1.23-0ubuntu1
Architecture: amd64
Date: Sat Sep 17 12:31:05 2011
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110909)
SourcePackage: monster-masher
UpgradeStatus: Upgraded to oneiric on 2011-09-13 (4 days ago)