The background client disconnecting is a process used for such kinds as syntax 
checks. Unfortunately I am not able to guess the cause of its failure. Therefore 
I'd like to get a stack trace. Please start eric via the command line and look for 
any messages printed.

I don't have any idea, why this would reset the font settings and style because 
these are totally unrelated.

Is there anything special with anaconda python? Please give all the version info 
as well (see versions dialog).