AutoCAD Inventor :: Task Scheduler Is Not Responding

I´m having a problem with the Inventor 2012 Task Scheduler. I´ve done a couple of migration tasks over the last 2 months, actually quite some big tasks on our Vault Server.

Now I´m getting no more access to the application, it´s either showing a message that the server is busy and not responding or the application starts up and sits for a minute in the task bar and then opens up but still I can´t click any menus or create a report to control the tasks I've done earlier.

But I need to check the last couple of tasks to see which files have been successfully migrated and which are not. I know that I can view the logfiles manually but that still leaves me with no more tasks that I need to run to fix our database and Inventor files.

Let the application run with administrator rights doesn't work either. What else could be done to get the task scheduler back up running?