I just installed Leopard last night, and so far everything runs beautifully except Time Machine, when I click on it I get an error code that says; "The operation could not be completed. An unexpected error occurred (error code -43)."
You are not the only one, however mine is on a factory install and I am getting this error message also. So far I haven't been able to find and answer.
Anybody else come across this and have been able to find a cause and solution?