Well i was having the same problem im currently dual boxing a shamman and mage team, on two seperate computers, I was told about Synergy which lets you control multiple PC's via one mouse and keyboard and it works flawlessly, just set up a hotkey i did F9 for my secondary machines monitor and set up F10 as my main machines monitor so when i want a alt char to do quest selection or loot i just hit F9 and i have full control of mouse over there on there display to do as i please, but the Jamba mod will let you set up to where as long as you have clicked on the NPC to turn in quest or what ever and then have main do the turn in or accept the alt chars will automatically turn in or accept. Synergy will give you what they call mouse spin on your alt chars, when you go to control them your camera and char just spin and run around but turn off Scroll Lock and make sure that your multi boxing software does not use Scroll Lock and hotkey or modifier and you should be good to go.