I went into my fonts folder and selected all, then pressed delete (so as to remove all non-system fonts, as system fonts are undeletable using this method as far as I know)

The specific problem I'm trying to solve is AdobePremiereProCS3 crashing everytime I browse fonts in the Titler. It doesn't crash immediately, it seems to be when I scroll down to particular fonts..
what's really weird is that I've deleted all but 11 system fonts now and Prem still shows all the others, even letting me selct some of them (albeit quite sluggishly despite fast PC and only ~160 fonts)

Any help would be amazing, I'd really like to fix whatever this font issue is that's killing Premiere..