[LANG] [SOLVED]Easy

[Darkfire]

This is a callback used for dialogues.
AddEffectVoice(string& asVoiceFile, string& asEffectFile, string& asTextCat, string& asTextEntry,
bool abUsePosition, string& asPosEntity, float afMinDistance, float afMaxDistance);

Unless you use a voice file in there, the text isn't going to appear. You can always make a blank voice file, but I'd suggest using
SetMessage(string& asTextCategory, string& asTextEntry, float afTime);

It's much more handy, but it will display the message in the centre, as I recall.