Anyone using i4gl 7.20 on Solaris 8, 9, or 10 (x86)?

We're trying to upgrade from Solaris 7 (x86) to a more recent version of Solaris (x86). We're using i4gl 7.20.UD6, IDS 7.31.UD7X5, and the Sun Studio 10 C compiler. When we try to connect to a remote database - either at compile time or run time - we encounter errors similar to this one: Network driver cannot bind a name to the port. See error number -25572. Shared memory connections do work. It's only when we use ontlitcp in sqlhosts that we have a problem. Is anyone familiar with this issue? Is there a solution, such as upgrading our development environment, that will allow us to upgrade to a more recent version of Solaris (x86)? FYI, here's the description of error number -25572: -25572 Network driver cannot bind a name to the port. A system call has failed. The sqlexecd daemon or database server cannot access the network port that is specified by the servicename in the sqlhosts file. This situation might occur because the network port is already in use by another sqlexecd, database server, or other application. Use a different servicename on the command line (prior to Version 6.0) or in the sqlhosts file (beginning with Version 6.0). Contact your system administrator for assistance. John sending to informix-list