I was quitting the mac psclient_static when it crashed. I used option-Q then agreed to quit, as opposed to using a mac event or menu. Here is the crash log. This is the first time it crashed on quit, although it has been very unstable today.
Date/Time: 2008-01-24 16:50:36.043 -0800
OS Version: 10.4.11 (Build 8S2167)
Report Version: 4
Command: psclient_static
Path: /Applications/Games/Planeshift3D/psclient.app/Contents/MacOS/psclient_static
Parent: WindowServer [57]
Version: 0.3.020 (0)
Build Version:

Project Name: psclient_static
Source Version:

PID: 242
Thread: 0
Exception: EXC_BAD_ACCESS (0x0001)
Codes: KERN_INVALID_ADDRESS (0x0001) at 0xbf7fffac
Thread 0 Crashed:
0 psclient_static 0x00584e54 CS::SubRectangles::SubRect::TestCollapse() + 10
Thread 1:
0 libSystem.B.dylib 0x900248c7 semaphore_wait_signal_trap + 7
Thread 0 crashed with X86 Thread State (32-bit):
eax: 0x2b686870 ebx: 0x00584e59 ecx: 0x00000000 edx: 0x41303028
edi: 0x00000008 esi: 0x00000020 ebp: 0x2b6868a8 esp: 0xbf7fffb0
ss: 0x0000001f efl: 0x00010282 eip: 0x00584e54 cs: 0x00000017
ds: 0x0000001f es: 0x0000001f fs: 0x00000000 gs: 0x00000037