Everytime I look at my max vit/mana it's changed... My mana for example has gone from ~600 to ~1000 and is now at ~800, all in the past hour of gameplay. I've leveled twice but didn't put any points in int. What the heck is going on? It's not my equipment, it hasn't changed. Do quests give bonuses to stats when you complete them? Right after I finished act1 my DK had like twice his normal vit and my hero (wizard) had like 75% more mana, and like 15mins later it's down. My DK's vit actually seems lower then it was 45mins ago (went from like 300 (I think) to 550 to 250). It's all very strange and confusing. The stat screen isn't helping much either, the numbers there have never added up to my actual vit/mana.
Oh, and I'm not using stat potions either.
Patch 1.45
