How the HECK do you just UNinstall this mod?

[Madiera]

Okay, I'm running Windows Vista (not by choice, I hate the dang thing), but I can't even log in to the GAME because it keeps popping up a login for ProfitUI Reborn, that won't accept ANY login information that I've ever used in my life.

WTH?

I've searched my hard drive for the .exe file, I've done everything I can think of, and I'm frankly, sick of it. I just want to delete the whole thing and start over.

Could someone just let me know how to DELETE ProfitUI, so that I can start all over with a clean install?

EDIT:

In some other thread someone said to delete the EQ2.ini.....I did that, and I STILL can't log in, it's saying that my password or username is wrong (and it INDEED is NOT). I think I'm done with custom UIs after this. I had forgotten how infuriating they are when it comes to updates. It's not worth it.