iChat Runs, but won't chat

[BicyclePunk]

Hi I'm running a dual G4 500 with 10.3.5 and iChat 2.1 (v153) (InstantMessage framework v187). iChat opens fine and I can see all my buddies, but when I go to initiate a chat with them, I get the following error prompt:

NSInvalidArgumentException:
NSConcreteMutableAttributedString addAttribute:value:range:: nil value

The after a couple tries, iChat crashes.

Any help would be great. Thanks!

 

[emw]

Have you tried deleting the preferences files and rerunning?

 

[BicyclePunk]

Tried that last night, but it didn't work. Still getting the same error when I go to initiate a chat with someone.

 

[yellow]

Repaired permissions?