icons theme update takes forever

[Dj YB]

hello,
few days ago I have changed my icons theme from oxygen to Neon,
as far as I can see all the icons have changed, but the "updating system 
configuration" dialog keep on working since that time (about 3-4 days) the 
percent indicator is traveling back and forth along the day...
now clearly something is wrong here, question is what and if I should file a 
bug and against what package?
and if I can kill it with no worries of damage?
thanks,
YB.