The notification "The window [...] is not responding." is not translated

[Thibault D]

Distribution : Ubuntu Oneiric 11.10 (French)

1. double click 3 or 4 times on an .avi file (by default Ubuntu will start
totem multiple times)
3. Totem will not respond, resulting in the following notification:
- "The window 'video reader' is not responding."
- "Forcing this application to quit will cause you to lose any unsaved
changes."

Those strings are not translated in French.