Mac Launcher runs fine, Minecraft crashes(?) immediately on launch

[Kree]

Launcher Version: 1.0.1.3

Operating System: Mac OS X 10.7.4

Java Version: Java SE Runtime Environment (build 1.7.0_05-b05), Java HotSpot 64-Bit Server VM (build 23.1-b03, mixed mode)

Antivirus Program: The launcher connects to minecraft.net and checks for updates fine, but when logging in, Minecraft only launches for a fraction of a second before vanishing.

Description of Problem:

The launcher connects to minecraft.net and checks for updates fine, but when logging in, Minecraft only launches for a fraction of a second before vanishing.

Error Messages:

(From the system log)

10/07/12 11:21:32.000 PM kernel: IOSurface: buffer allocation size is zero

10/07/12 11:21:32.000 PM kernel: IOSurface: buffer allocation size is zero

10/07/12 11:21:34.000 PM kernel: IOSurface: buffer allocation size is zero

10/07/12 11:21:34.000 PM kernel: IOSurface: buffer allocation size is zero

10/07/12 11:21:44.416 PM java: CGContextGetCTM: invalid context 0x0

10/07/12 11:21:44.416 PM java: CGContextSetBaseCTM: invalid context 0x0

10/07/12 11:21:44.416 PM java: CGContextGetCTM: invalid context 0x0

10/07/12 11:21:44.416 PM java: CGContextSetBaseCTM: invalid context 0x0

10/07/12 11:21:44.000 PM kernel: IOSurface: buffer allocation size is zero

10/07/12 11:21:44.000 PM kernel: IOSurface: buffer allocation size is zero

Error Log:

[23:21:34] [sEVERE]	Launcher is starting....

[23:21:34] [sEVERE]	Launcher Build: '1.0.1.3'

[23:21:34] [sEVERE]	Allocated 910.25 Mb of RAM

[23:21:34] [sEVERE]	Java VM: '1.7.0_05-b05'

[23:21:34] [sEVERE]	OS Version: '10.7.4'

[23:21:34] [sEVERE]	Is 64-bit: 'true'

[23:21:36] [sEVERE]	[info] Downloading 'mirrors.yml' from 'http://mirror.technicpack.net/Technic/mirrors.yml'.

[23:21:36] [sEVERE]	Starting download of 'http://mirror.technicpack.net/Technic/CHECKSUM.md5', with 3 trie(s) remaining

[23:21:37] [sEVERE]	Copying: /temp/file7201210127434465378.tmp to: /launcher/CHECKSUM.md5

[23:21:37] [sEVERE]	File Downloaded: /launcher/CHECKSUM.md5

[23:21:37] [sEVERE]	[MD5 Mismatch] File '/launcher/tekkit/modpack.yml' has md5 of 'e16f7f6f0454999313947b0cb9a880d0' instead of '1b40ec4a42ec16ecf5407bb6e418c9ba'

[23:21:37] [sEVERE]	[info] Downloading 'modpack.yml' from 'http://mirror.technicpack.net/Technic/tekkit/modpack.yml'.

[23:21:38] [sEVERE]	[info] Downloading 'minecraft.yml' from 'http://mirror.technicpack.net/Technic/minecraft.yml'.

[23:21:45] [sEVERE]	Loading Launcher from 'techniclauncher/tekkit'