Multiple NETTYPE Definitions in ONCONFIG

I discovered that NETTYPE is defined twice in the ONCONFIG files for 5 Informix databases that I'm taking over responsibility for. One definition is for tlitcp and the 2nd for streams str??? or something like that. These 5 instances are on the same machine. We have been experiencing 908 errors. Informix recommended that we take out at least one if not both of the NETTYPE definitions and let them default. In the INFORMIXDIR/etc/sqlhosts file all that is defined is tlitcp - multiple times with unique names. In the machine specific notes for this release it says that NETTYPE definitions need to be in the TBCONFIG and in the INFORMIXDIR/etc/sqlhosts file. THE QUESTIONS ARE: What is the effect of defining NETTYPE or any other configuration parameter more than once? Does Informix handle it o.k., get confused, take the value of the last one it reads or what?? Do I really need to have NETTYPE defined in the ONCONFIG as well as in the INFORMIXDIR/etc/sqlhosts file or not? Thanks in advance for any help. @#$% it, I'm gonna go get some mangos. Joe