Prefixes stopped working (1 Viewer)

[Sypher]

Hi,

I'm using MediaPortal for a while now. At first RC1, now RC2.
At some point, the prefixes "My TV", "My Music" stopped working.
Changing it in the settings doesn't have an effect.

What can cause this? Or even more important: how can I fix this?

My specs:
TV-Server Version: 1.0 RC2
MediaPortal Version: 1.0 RC2
MediaPortal Skin: Indingo
Windows Version: Windows XP SP3
CPU Type: Intel E8400 - 2.6 GHz x2
HDD: Samsung Spinpoint 1TB
Memory: 2x 1024 MB DDR2 800 Mhz
Motherboard: Asus P5N-EM HDMI
Video Card: Asus GeForce 8500 GTS Silent (passive)
Video Card Driver:
Sound Card: Creative Audigy
Sound Card AC3:
Sound Card Driver:
1. TV Card: Medion/AverTV
1. TV Card Type: Analog
1. TV Card Driver:
MPEG2 Video Codec: PureVideo / MPV
MPEG2 Audio Codec: PureAudio / MPA
h.264 Video Codec: CoreAVC / Cyberlink
Satelite/CableTV Provider: Ziggo (Casema)
HTPC Case: Antec NSK2480 -v2
Cooling: Scythe Ninja Mini + 2x Nexus Supersilent casefans (120mm)
Power Supply: Antec, 380w
Remote: Microsoft MCE Remote
TV: LG 32"
TV - HTPC Connection: HDMI