I've got some ads i created as recently as less than a year ago, often using a font i was always fond of on my computer -- "Architect". To the best of my knowledge i've never bought a font. For whatever reason that font is no longer on my computer; when i go to just change the text on an earlier ad, i'm told there are going to have to be font substitutions. I did a google search for fonts and was led to "fonts.com" but the architect light, architect fdamily, architect bold that they show there a) doesn't match the architect i'd used earlier and b) they want $32-$160 per.
So my questions are:
1) where would architect have come from on my computer?
2) more importantly, where would it have gone?

3) and most importantly, where do i get a replacement?
with all the free fonts i've got it's hard to imageine i'd have to pay well over 200 to get a single font in various weights, ital, etc.
appreciate your help. thanks.
terry