Are you sure getting radiant quest books will break the quest? I'm pretty sure I have before and still finished the quest. I know I have found things like Ring of Pure Mixtures before I got the quest and it worked fine.
An what do you mean don't pick up named items?
Yessir, quite. I've broken those stupid book quests more times, on more characters. Also named items like
Spoiler Pantea's flute, or the drums, or "Amren's family sword etc...
they CAN ruin quests. They don't always, but it's better to wait for the quest.
Just tried sprinting with the torch...doesn't work.
It's been confirmed on 360 and PS3. Doesn't work on the comp though. Sorry man. Tap the sprint button, don't hold it down. Tap.
Also, if I become a vampire, get Necromage, get perks that are strengthened by Necromage (for example, the Recovery perk for +25% magicka regeneration, with Necromage becomes +31%), can I keep the +6.25% bonus added to the perk if I cure vampirism? If not, will I regain the +25% bonus to Necromage-affected perks gained after getting Necromage if I cure and regain vampirism?
Yes. And yes. We tested this today/yesterday, since it was written everywhere that you lose it. Turns out, you don't lose it at all. It's like the restoration glitch. You keep your crazy
until you take the ring off (for example). You can't "untake" a perk, so the bonus stays. Just don't take any perks that are affected by necromage, between curing and re-infecting with vampirism. A full list is here: http://www.gamesas.com/topic/1385179-perks-affected-by-necromage-as-a-vampire/
Hope I ddin't miss anyone (sorry Chemical).