Volume Settings -> Startup, Disabled (1 Viewer)

[SamFulton]

TV-Server Version:
MediaPortal Version: 0.2.3.0 RC2
MediaPortal Skin: Foofaraw
Windows Version: Vista 32biy
CPU Type: P4
HDD: Ext USB
Memory: 1Gb
Motherboard: Dell Dimension 8400
Motherboard Chipset:
Motherboard Bios:
Video Card:
Video Card Driver:
Sound Card:
Sound Card AC3:
Sound Card Driver:
1. TV Card:
1. TV Card Type:
1. TV Card Driver:
2. TV Card:
2. TV Card Type:
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:
Satelite/CableTV Provider:
HTPC Case:
Cooling:
Power Supply:
Remote: Black Vista MCE Remote
TV:
TV - HTPC Connection:


So, I am trying to find a way to ensure that my system volume stays at 100% when in MediaPortal. The best would be for it to be locked at 100% - but I doubt that is possible. The setting General->Volume Settings->Startup->Custom looks promising, but the entire startup section is disabled (greyed out). Is this something specific to my config? How do I enable it?

The reason I want the vol at 100% is because I use multiple sources (HTPC being one of them) and I want it to be as close to the other sources as possible. Volume is controlled through my amp.

Thanks for any help you can give!