Startup services

[Bill Stanley]

HI,

I recently did an upgrade and I am getting slow boot up times caused by 
some problems with the services that are run at startup (boot). One of 
the services is modem-manager which hangs for a while (about 30 seconds) 
during boot, probably waiting for something to start. The name implies 
that it manages the modem.  If this is the case, I can see the problem 
because I don't have a modem.  Do I need it and if not, how and where do 
I disable this service?

Another service that is unneeded is the Bluetooth service since I do not 
have any Bluetooth devices.   Do I need it and if not how and where can 
I disable it?

Another possible unneeded service might be the saned service.   I do 
operate a scanner and I use Xsaned.  Reading the documentation on saned 
gives me the impression that it is needed foe network access to the 
scanner.  Since I never access the scanner via the network, is it needed 
by Xsaned?  If I don't need it, how and where do I disable it?