Mail crashes on launch after Leopard 10.5.2 update

Question

I upgraded my Al PB G4 1.67 GHz to Leopard last week. I like Leopard's new features, but have had my share of bugs getting all my programs to work. The latest hiccup is with Mail.
Mail (the new version that was installed with Leopard), had been working fine for about a week. Then yesterday, after getting the OS 10.5.2 update through SW update and rebooting, I tried to launch Mail, and after 20 seconds or so of the Mail icon bouncing in the dock, got the message "The application Mail quit unexpectedly." This happens before any Mail GUI has a chance to pop up at all. I'll attach the report at the end of this question.
I have tried loggin in as a guest user and launching mail, and the exact same thing happens, so it seems like the problem is system wide. Note that, also prior to getting the 10.5.2 update, I had been deleting non-English launguage files from certain applications to save hard disk space, but I didn't touch Mail in this regard. . . so unless some library got deleted accidentally, I'm not sure what's going on.
Is anyone else having this problem? Thanks a bunch for reading!
(Here's the top part of the error report)
Process: Mail [700]
Path: /Applications/Mail.app/Contents/MacOS/Mail
Identifier: com.apple.mail
Version: 3.2 (919)
Build Info: Mail-9190000~3
Code Type: PPC (Native)
Parent Process: launchd [89]
Date/Time: 2008-02-17 18:07:30.557 -0800
OS Version: Mac OS X 10.5.2 (9C31)
Report Version: 6
Exception Type: EXCBADACCESS (SIGBUS)
Exception Codes: KERNPROTECTIONFAILURE at 0x00000000000007c8
Crashed Thread: 0
Thread 0 Crashed:
0 libobjc.A.dylib 0xfffeff10 objcmsgSendrtp + 16
1 com.apple.AppKit 0x93a98a68 -[NSApplication run] + 776
2 com.apple.AppKit 0x93a69444 NSApplicationMain + 440
3 com.apple.mail 0x000f286c 0x1000 + 989292
Thread 0 crashed with PPC Thread State 32:
srr0: 0xfffeff10 srr1: 0x0200f030 dar: 0x000007c8 dsisr: 0x40000000
r0: 0x00000016 r1: 0xbffff770 r2: 0xa05a5924 r3: 0x000007c8
r4: 0x000f2874 r5: 0x0089d390 r6: 0x00000000 r7: 0x00000002
r8: 0x00000008 r9: 0x00000004 r10: 0x927dca3c r11: 0xfff12874
r12: 0x0002d4d4 r13: 0x00000000 r14: 0x00000000 r15: 0x00000000
r16: 0x00000000 r17: 0xa003789c r18: 0xa0618760 r19: 0xa0628760
r20: 0x00260000 r21: 0xbffff7e8 r22: 0xbffff7c8 r23: 0xa0618760
r24: 0x00000000 r25: 0x00000000 r26: 0xa0618760 r27: 0xa0618760
r28: 0x00836eb0 r29: 0x927fb95c r30: 0xa0628760 r31: 0x93a98760
cr: 0x44000224 xer: 0x00000007 lr: 0x0002d508 ctr: 0x0002d4d4
vrsave: 0x00000000

Answer 1

I have a similar issue. I have had Leopard installed for a few months with everything working fine. A few days ago mail stopped working. Mail appears on the desktop but crashes after beginning to bring accounts online. Does anyone know what could be wrong.
report to apple says:Process: Mail [775]
Path: /Applications/Mail.app/Contents/MacOS/Mail
Identifier: com.apple.mail
Version: 3.1 (914)
Build Info: Mail-9140000~1
Code Type: X86 (Native)
Parent Process: launchd [94]
Date/Time: 2008-02-21 21:15:06.653 +1100
OS Version: Mac OS X 10.5.1 (9B18)
Report Version: 6
Exception Type: EXCBADACCESS (SIGBUS)
Exception Codes: KERNPROTECTIONFAILURE at 0x00000000b0641fdc
Crashed Thread: 15
Application Specific Information:
-[POPAccount fetchSynchronously]
-[MailApp _synchronouslyTellSyncServicesToRegisterAndSync]
-[POPAccount fetchSynchronously]
and a whole lot more...