I have really similar issues - hard to understand and really diffused on my Gnome desktop.
I am using Ubuntu 8.10 amd64 with -backports and -proposed on, with language-support-it installed. I am really used to reading English text on my pc, so I became aware of this problem only when it was too late to understand which package ruined everything. However, it seems to be strictly related to nautilus.
Examples of English-only parts of my desktop:
* "back", "forward", "up" and "search" in Nautilus
* selector of nautilus lateral panel (Places/Information/Tree/...)
* Nautilus preferences (Edit -> Preferences - except some scattered Italian phrases)
* "File operations" window - and merge or overwrite confirmation windows
I am at your disposal for every information you may need.
I have really similar issues - hard to understand and really diffused on my Gnome desktop.
I am using Ubuntu 8.10 amd64 with -backports and -proposed on, with language-support-it installed. I am really used to reading English text on my pc, so I became aware of this problem only when it was too late to understand which package ruined everything. However, it seems to be strictly related to nautilus.
Examples of English-only parts of my desktop: Information/ Tree/.. .)
* "back", "forward", "up" and "search" in Nautilus
* selector of nautilus lateral panel (Places/
* Nautilus preferences (Edit -> Preferences - except some scattered Italian phrases)
* "File operations" window - and merge or overwrite confirmation windows
I am at your disposal for every information you may need.