Just to note, I wouldn't necessarily take what's written in the Cockos Wiki as 100% fact plus it's quite outdated in parts (I think as it's commonly the case with Wikis it was mainly done by volunteers).
Maybe the user guide might be a better source, have you checked if / what it says about it?
edit:
Thinking agian, in this case though 'Quantize notes to grid' seems to me also it should actually hard quantize, so disregard above.