Version:           4.6 (using KDE 4.6.1) 
OS:                Linux

I'm experiencing a very annoying problem regarding unicode characters in filenames. It appears that non-latin characters are detected incorrectly in every KDE(/QT?) application, unless said application is run with 'dbus-launch'.

This makes for annoying results - Amarok does not detect these files, Dolphin displays incorrectly, etc.

Reproducible: Always

Steps to Reproduce:
Launch application such as Dolphin normally, navigate to folder with unicode characters.

Actual Results:  
Characters are displayed incorrectly.

Expected Results:  
Characters should be displayed correctly.

This happens on every filesystem - I've tried ext4, and NTFS (through ntfs-3g). Also, my ~/.zshrc contains:

export LANG="en_US.UTF-8"
export LC_ALL="en_US.UTF-8"

However, this seems to have no effect.

I've attached two screenshots - one shows Dolphin handling these characters when launched with dbus-launch, and one shows it when launched normally.