Force Profile Update Hack Question

i want to install the Force Profile Hack, is there a file i can edit that will force the user to update their profile without them having to post? There are a lot of users on my forum that never have but i would still like to have all their fields filled in.

[Gary King]

Looks like that hack will require the user to modify his/her profile when he/she views certain pages. What's wrong with that? That seems like what you're looking for.

[JamieK18T]

i was thinking it only forced them when they try to make a post. i read wrong.