System Properties catastrophic error message

Hi everyone,
I got terribly scared in the middle of the night when out of the blue this error message pops-out on me:
System Properties
“There was an unexpected error in the property page:
Catastrophic failure (0x8000FFFF)
Please close the property page and try again.”

The move that caused the error to appear was simply trying to start up System properties from Control Panel.
Why is this catastrophic?
And how do I find out what caused it?
Please help, I would greatly appreciate it.
