Chanel List (1 Viewer)

[caveman]

TV-Server Version: 1.0
MediaPortal Version: 1.0
MediaPortal Skin: Blue 3
Windows Version: Vista 32 Professional
CPU Type: AMD 4850e
HDD: Samsung 320
Memory: 4GB
Motherboard: GIGABYTE MA78GPM-DS2H
Video Card: ATI Radeon 3400
Video Card Driver: Catalyst 8.12
Sound Card: Realtek Onboard
Sound Card AC3: Realtek Onboard
Sound Card Driver: 6.0.1.5694
1. TV Card: FireDTV C/CI
1. TV Card Type: DVB-C
1. TV Card Driver:
2. TV Card: Haupage 1300
2. TV Card Type: analog
2. TV Card Driver:
3. TV Card:
3. TV Card Type:
3. TV Card Driver:
4. TV Card:
4. TV Card Type:
4. TV Card Driver:
MPEG2 Video Codec:
MPEG2 Audio Codec:
h.264 Video Codec:
Satelite/CableTV Provider:
HTPC Case: Origenae X11 v2
Cooling: synth ninja mini
Power Supply: DeZen - SCP400FL - FLPower - PSU 400Watt
Remote:
TV:
TV - HTPC Connection:

I have been using mediaportal now for some time, but with some channels i get the graph error.
However in the FireDTV Viewer has now problem showing the channels.
So i guess it's part of freqeuncies that have changed.

Is it possible to scan for only some channels? And how?
Is it posible to scan for all channels, but only use some from that scan.
Is there something else i could do, that i didnt think about

Hope somebody can help me