Unrecoverable crashes and booting in safe mode

Question

Hi there,
I've tried contacting Ambrosia support about this, but have not been able to get a solution. I thought I'd try here in case anyone else has any ideas.
I recently upgraded to Leopard, and now whenever I invoke Snapz Pro, it causes an immediate and unrecoverable crash. The computer becomes unresponsive and I need to shut down by holding down the power button to get control back. Apparently, nobody else using Snapz has experienced this.
I've tried a number of things, all without luck, including:
- created a new user on my machine, and logged in as that user -- no luck
- performed a new, clean install of Leopard on my main drive, and before migrating my old user data back over -- no luck
- removed some new memory I recently installed just to see if that was it -- no luck
- removed all USB/firewire accessories except for the keyboard and mouse -- no luck
The only thing that seems to work is to boot in safe mode. Then it works fine.
I have no idea what could be causing this. Right now I'm using a fresh install of Leopard -- I haven't installed any new accessories or applications, so it's like a brand new computer, and it won't work.
I'm using a Powermac G5 Dual 2GHz, 2.5Gb RAM, ATI X800 card (drivers up to date). Any ideas would be greatly appreciated.

Answer 1

Just so everybody knows, I've found out this crashing only occurs when the resolution on the cinema display is set to the maximum (2560 x 1600). Lowering the resolution to any other setting, even the next lowest (2048 x 1536) restores the normal function of Snapz Pro without the crashing.
It appears to be a problem either with Apple or ATI and the drivers used for the X800 XT with Leopard on a 30" display. Not sure if/when that might get fixed, but at least I can use the program now.