Once I had in dolphin places such as "Today", "Yesterday", "This Month" (AFAICR), they were marked with a calendar symbol.
They are gone now somehow and I don't know how to get them back.

I didn't deactivate nepomuk or semantic (or anything).

try find (ctrl+f) then click "more options"

google01103 wrote:try find (ctrl+f) then click "more options"

No, I mean like this:
http://4.bp.blogspot.com/-x7yDC9B9Bk0/ULTGfgzC2_I/AAAAAAAANbA/gCi9dltVzc4/s1600/dolphin-2-2-beta-1.png (on the left side)

Is Nepomuk enabled on your system?

bcooksley wrote:Is Nepomuk enabled on your system?

Yes, it is.

Do those "Today", "Tomorrow", etc entries appear under a new user?

bcooksley wrote:Do those "Today", "Tomorrow", etc entries appear under a new user?

Hmm, unfortunately not...

PS:
What a PITA to create a new user with kuser

Uh, I think I found it:

I usually leave dolphin on when I logout/shutdown. So when I login and my session is restored, there is also dolphin open. However unfortunately it looks like dolphin is started before NEPOMUK (-integration), so it starts w/o the links to "recently accessed".
But when I close dolphin and start dolphin fresh, everything is there....

Thats really bad, because it means I have to restore my open folder by hand every time after start.

fakd wrote:Uh, I think I found it:

I usually leave dolphin on when I logout/shutdown. So when I login and my session is restored, there is also dolphin open. However unfortunately it looks like dolphin is started before NEPOMUK (-integration), so it starts w/o the links to "recently accessed".
But when I close dolphin and start dolphin fresh, everything is there....

This sounds like https://bugs.kde.org/show_bug.cgi?id=304918 which should be fixed in KDE 4.10.4 when it's out.

freininghaus wrote:This sounds like https://bugs.kde.org/show_bug.cgi?id=304918 which should be fixed in KDE 4.10.4 when it's out.

Ah, thanks (also to the other posters).

KDE SC 4.10.4 is targeted for the 4th of June, thats not to bad.