I've recently upgraded my Macbook Pro from Tiger to Leopard.

However now I cant access Disk Utility as it quits unexpectedly.

This is a report error message.

Symbol not found: ___commpage_dsmos
Referenced from: /Applications/Disk Utility.app/Contents/MacOS/Disk Utility
Expected in: /usr/lib/libSystem.B.dylib

I've run Disk Utility on the Leopard Install Disk and repaired the disk and the permissions.

Any help would be appreciated.

ive heard it could be something to do with fonts maybe?