I'm at the point where i need to perform an exorcism on Francessca Gulvardi in act 2 and I have the mandrake broth, the rosary, and the scriptures, but when i put the rosary on and talk to francessca theres no option to perform the exorcism :( anyone know what I have to after being tasked by the bishop's ghost to finish this thing? Thanks

Edit: somehow google found the post whereas the forum search couldn't help me :( But thanks to Excolion's posts here http://www.gog.com/forum/inquisitor/act_2_problems/post9 I figured out i needed holy water as well :)

Where did you guys find the Rosary? I dont have it. Plus this quest doesnt register as a quest in my book though I have the diary!!

This quest is given to you by Bishop Trevorius after you meet with him at the Grand Duke's Gazebo. It should appear in your Journal then. Rosary is sold by Erbert of Trimoli in the Glatzburg's church.