Version:           4.5 (using KDE 4.5.0) 
OS:                Linux

For starting apps I always use Alt + F2 (KRunner), type in the first 3-4 letters or the full name and press enter.
For Kontact it's different: Enter "kontact" and press Tab, because it's the second entry! The first entry is the configuration dialog for standart component.

I can't say if it's a general problem or just alphabetical order in the german translation. But it's pretty annoying!
Additionaly I really can't understand why KRunner displays the settings dialog from Kontact as an own application, for every other app there's nothing like this.

The problem doesn't exist when Kontact is already started:
1. entry: Window of running instance
2. entry: Start Kontact
3. entry: Kontact settings crap

Reproducible: Always

Steps to Reproduce:
KRunner -> "kontact"

Actual Results:  
The "real" Kontact is at 2nd position. Annoying!

Expected Results:  
Should be at first position

Don't know if it's language related ?!