i know there are already topics going on about this and workarounds have also been found but my problem is little bit more than that............i have oblivion 5th anniversary edition which already includes shivering isles..........i started shivering isles before getting vampire disease....i played halfway through shivering isles....then i went back to cyrodil and did some quests there and became a vampire...now im getting the bloodgrass error on vampire cure quest but if i change the language i could complete the quest.....but the major problem is after changing language all my shivering isles quest dissappear and the quest "A door in Niben Bay' appears....more importanty when i go back to shivering isles i cant complete the main quest 'a better mousetrap' coz the crystals are already placed there..duh...wat a bummer...now i dont know what to do....some side quest are also having little glitches like now ill have to kill the gatekeeper alone coz the guy with the bone arrow has already helped me.... plz..help.... i have 2 saves
1. where i have changed the language and completed the vampire cure quest but the whole shivering isles has bugged
2.where i havent changed the language but im still a vampire and cant get the cure....

is there any way i could cure vampire without bugging shivering isles....or is there a way to retrieve old save files of oblivion from ps3 hard disk to the point where i havent got the disease............. desperately waiting for reply................

You're stuck with it unfortunatley, better off going with save 2. Why'd you become a vampire if you were going to cure yourself so soon?

Load save 1 and drop any items you got from SI -- be sure you are in Tamriel somewhere and make a new save - deactivate the SI plug in - load game and go into an interior cell - wait or sleep 5 days ( to reset all of the cells ) - save again - reactivate the SI plugin and start over with the SI and hopefully all of the leftover bits have been deleted by the process and you can begin doing SI from the beginning again with your character cured of Vampirism.

@reflex matrix..thanks for the reply...i never wanted to become a vampire....but then i became one....and i knew there was a cure but didnt knew about the bug....and that is why i let my player change into a full vampire......duh....how stupid of me...

@jdfan.....thanks for reply...if i load save 1 i already had lost all SI items how can i drop them....and how in the world do i deactivate the SI plug in... i have a 5th anniversary edition of oblivion...i didnt downloaded the SI from psn....plz help...

damn so this bug is still there crap how do you deactivate SI if you have the 5th anniversary edition?

iv only just started it again been a while since i played it and when i last played it i didnt get very far

Easy solution. Don't become a vampire. Vampirism is annoying anyway. Go to a church or drink a cure disease potion immediately after fighting vamps.