Happens the same for me...quite annoying. Maybe it's a Windows thing?
Yeah, I think it is a Windows thing. That's why I initially installed EFD, not just to customize the Places Bar, but to finally have all the folder in the open/save dialog always display in List view. Guess I'm out of luck with that.
Also for some reason when I go to browse for an icon through the Icon tab (icon packager or just "change icon" on the general tab) EFD isn't there. I'm pretty sure it was there before I formatted a week ago.
Hmm, I'm not having that problem. On both occasions it's there (with those d**n 2 folders in Thumbnail view

) I'm completely clueless to why it's not working for you..