Comment 18 for bug 92091

Experiencing the same message on 7.10 (gutsy), FAT USB disk & CD-ROM.
The "Unsafe..." message didn't appear in xfce until I installed ubuntu-desktop on top of an Xubuntu installation (now appears in both gnome and xfce).
BTW, the message doesn't say which device is unsafe, which may be important if the user did nothing like in this case or in fortuitous device disconnection.
Laptop too : Toshiba Tecra 8000 : no ACPI (kernel cannot detect date, just before 2000 anyway, loop problem to be solved with acpi=force)
So, suspend via the software button (and probably automatic one too) does not work, but the power switch does suspend (and is amazingly fast, both off and on).
I imagine is I can only enjoy a hardware initiated suspend.

Impact : I'm reporting for everyone's sake, so the first thing I would say is that the common user shouldn't be taken into the habit of ignoring error messages.
I doubt I would loose data, since I guess it's only the habit of another system to write directory information a full load of seconds after the data was written (a joy to go on holidays with a camera memory card whose space has been freed but whose directory contains leftover files pointing to new shots at random).
Yet, this USB disk structure was messed up some day and I dunno why.

Also, launching a new File Explorer on each resume could be done without.

Hearty André (Hearty like every Heron should be !!!)