Ooo, one of the Evo developers came on #gnome the other day asking for someone to translate a bug report from French, and I did it for him, and iirc it was a bug sounding a lot like that.

To be fair, I am using Evolution 1.x (because the state of the Linux distribution on this machine doesn't make it easy for me to upgrade), so I'd hesitate to report this as a real bug since it's perfectly possible that 2.x has fixed it. My boss used to swear about Evolution more than anyone else in this room, but since he upgraded to 2.x he's been surprisingly quiet, so I can only assume it really is a hell of a lot better :-)