Photoshop CS2 just stopped working

I know Adobe doesn't officially support it but I've been running the CS2 suite under Leopard on 3 different Macs now with no major issues. On my newest (MBPro 2.88) I've had it installed for over a month; today for no apparent reason I've been unable to launch Photoshop CS2 (I've included the error report below). No other CS2 apps have been affected; have tried repairing prefs, running fsck, logging in as diff user -- no dice. I'm away from home so a reinstall ain't gonna happen until next week, but I need to use it now. Any idea what could have caused this out of the blue? The only recent change to the system was when I trashed the Library>Preferences>SystemConfiguration folder recently to troubleshoot a wifi issue...

Error message (abbreviated):

Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Crashed Thread: 0

Thread 0 Crashed:
0 translate 0xb8152b34 spin lockwrapper + 91256
1 translate 0xb8171633 CallPPCFunctionAtAddressInt + 96207
2 translate 0xb80bdb8b 0xb8000000 + 777099
3 translate 0xb80b7007 0xb8000000 + 749575
4 translate 0xb80d49c0 0xb8000000 + 870848
5 translate 0xb813ce79 spin lockwrapper + 1981

Thread 1:
0 ??? 0x800bc1c6 0 + 2148254150
1 ??? 0x800c39bc 0 + 2148284860
2 translate 0xb818b6ea CallPPCFunctionAtAddressInt + 202886
3 ??? 0x800ed095 0 + 2148454549
4 ??? 0x800ecf52 0 + 2148454226