Emulator

What steps will reproduce the problem?

1. Start Dolphin
2. Run any Game

What is the expected output? What do you see instead?
Should work, instead endless MessageBoxes pop up saying things like "Warning
WriteRest: op out of range (0x121eca318 uses 0x800006680)".
Console is saying "../src/common/utilscmn.cpp(1307): assert "Assert failure" failed in wxMessageBox(): unexpected return code from wxMessageDialog [in thread 12eb0f000]" after click ok on this messagebox.
The Numbers change during the endless popup of Messageboxes.

Dolphin version with the problem? Other Dolphin version without the
problem?
r6214 is working, a few revisions later, too but then it broke some revisions ago while the merging party of video plugins

32-bit or 64-bit and any other build parameters?
64bit

OS version and versions of tools/libraries used?
OSX Snow Leopard

Please provide any additional information below.