i have no tasks and i don't know what to do Ron keeps saying look at your map for the DA members but there ain't none please help

Oh, this has to be the hardest (note: most annoying) part of the game. There are DA members around. You might have to track them down, though.

If this fails, check out the Room of Requirement. There might be someone up there who needs you to teach them a spell.

If THAT doesn't work, then you might have to resort to the worst-possible alternative: starting a new game.

This HP game isn't a stranger to glitches, and this might be the mother of all controller-flinging glitches. Sorry, but good luck!

I have the solution to the problem.

After doing the last of the rebellion missions.Go to the Viaduct area,continue to the path where do the mission for helping Colin get his camera down in order to recruit him for the D.A.Fred and George left a Swamp package at the roof top.Repair the ladder and climb up,once at the top go the swamp gift,use Wingardium Leviosa to bring the package down.Then climb down and use Incendio or Reducto to activate the swamp.After that, Draco Malfoy will turn up to remind you that you need to report to Snapes Officefor the next Occulmency lesson. And thats it.

I dont having a *bleep*ing clue where this charms book is in the library..... can anyone help?

The Charms Book is in the Great Hall,theirs a girl sitting to the second right table.