On May 1, 2012, at 10:22 AM, Walter Lenk wrote: > The old PowerPC > processor shrugs these off, but the Intel processor crashes on > integer divide by 0. I needed to go through all my code to make sure > that this would not happen. Good point and worth reviewing, but AFAIK divide by zero crash reports ( at least in OS X 10.6/10.7 ) actually say "divide by zero" ). See excerpt below. … OS Version: Mac OS X 10.7.3 (11D50b) … Exception Type: EXC_ARITHMETIC (SIGFPE) Exception Codes: EXC_I386_DIV (divide by zero) and Mike’s crash report looks like a memory overwrite/issue of some kind. Exception Type: EXC_BAD_ACCESS (SIGBUS) Exception Codes: KERN_PROTECTION_FAILURE at 0x00000000000210c0 Brian S.