Ive noticed quite a lot of bugged quests and im amazed they have been pathced more than a year after the initial release of the game.

Currently stuck on the following :

-No option to give Cpl farber the food additive even after fixing the food processor and working out the meat supply for him

-Worked out a deal with Keller, went back to Contreras, but there is no reward or discount and i can only buy from him or ask about price. Theres also a part where the dialog option becomes invisible (but you can still click on it and proceed).

Also some bugs with speech check options not showing up in dialogs. Kelly in vault 22 wont give ANY speech check options for me to convince her i need the data.

North vegas square, no speech option to tell the thug guarding andy's room to go away.

Any ideas for workarounds or are there unofficial fixes out there?