Internet Connection Sharing

I have WindowsXP Professional ver. 2002 SP-1. My computer is networked
to two other computers that access the internet through the WinXP
computer. I have two modem dial-up providers (I live in a VERY rural
area, where connections are not consistent or reliable, and so from
time to time I need to switch from one to the other). At
AllProgramsAccessioriesCommunicatonsNet Connections, at the tab
PropertiesAdvanced I would like to configure the option "Internet
Connection Sharing" for each dial-up service to "Allow other network
users to connect through this computer's internet connection". As it
is now, WinXP will allow me to put a check mark in that option for
only one of the dial-up services. If I place a check mark in the
second, WinXP responds "Internet Connection Sharing is currently
enabled for connection 'One'. It will now be enabled for 'Two'
instead". So, my question is, Is there a way to change that word
"instead" to "as well"? Thanks.