The Surface 2D graphics project has released version 1.61 to address an important bug fix. They write in, "This is a bug fix release that solves the 'hangs on renderer exception' bug in the new console system. The bug happens if you use the console system and get a runtime exception (missing DLL etc) in the Javascript. An infinite loop was created in the IO subsystem (blame Jan Erik) and none of the test cases provoked the problem since our test system has all the DLL's."