TW crash on save

[SCLisa]

I have a new problem that has just appeared. To my knowledge, I
haven't changed any settings.

TextWrangler is crashing on save. The error log says:

**********

Host Name: Powerbook.local
Date/Time: 2008-10-06 08:37:26 -0400
OS Version: 10.3.9 (Build 7W98)
Report Version: 2

Command: TextWrangler
Path: /Applications/TextWrangler.app/Contents/MacOS/TextWrangler
Version: 2.1.3 (2.1.3)
PID: 9615
Thread: Unknown

Link (dyld) error:

dyld: /Applications/TextWrangler.app/Contents/MacOS/TextWrangler
Undefined symbols:
NavigationServices undefined reference to _GetCurrentScrap _GetCursor
expected to be defined in HIToolbox

I have tried trashing both preferences files, and tried trashing it
all and re-installing, with no success. What else can I try?

Lisa