[badlydrawnboy]

I got this error (from the log) when running my routine backup:

| 10:05:21 PM | Error | 2010-06-06 22:05:21.513 SDCopy[425:613] NSExceptionHandler has recorded the following exception:
| 10:05:21 PM | Error | NSUncaughtSystemExceptionException -- Uncaught system exception: signal 10
| 10:05:21 PM | Error | Stack trace: 0x904a8378 0x9083242b 0xffffffff 0x907f641b 0x907f63ad 0x6c8e 0x5416 0x3405 0xa14d 0x2406 0x232d 0x11

What does it mean, and what should I do?