NavSpeak [advanced menu] - Flags ... What for ?

[Refugee]

Hi there ,

The thing is that few days ago I wanted to change some voices in MK3 . I had done the voice file to mk4 with few changes before , so I thought that I'll just need to replace the file . Unfortunately after replacing the voices (gb_f) it actaully didn't say anything ,there was only a silence instead of "turn left" for istance . For last few days I've been wondering why is that (there's the same ammount of phrases in both MK3 and MK4) .

Today I clicked on advanced tab in NavSpeak . I spotted "flags menu" in the choosen tab . I'm just wondering what's that ? May it be the source of my problems ? And how does it work ?

Thanks in advance,
Refugee

[Refugee]

I'm sure somebody knows,
still waiting