They are grayed because IB doesn't accept connections from anything other than localhost (although you may be able to specify a port, so technically the graying may be in error). But anyway ... you have to have TWS running and you have to have "Enable ActiveX and Socket Clients" checked from the Configure->API menu in TWS. If it still does not work, you may need the TWS API software installed. This can be found here:
http://www.interactivebrokers.com/en/control/apicontrol.php?ib_entity=llc ... unfortunately IB's plugin is probably the biggest burden on the end user, and of course, they update frequently than anyone else to add to that pain.

ozzy (2/25/2007)
I'm having problems connecting to Interactive Brokers. I performed the following steps:
Tools --> Configure Services --> New --> and then Selected Interactive Brokers.
All the fields are greyed out, I'm unable to add the necessary info to connect to the IB api. Am I doing something wrong? Sorry for the NOOB questions.
Any help would be appreciated.
Thanks