listener-thread: err = -25546: oserr = 0: errstr = : Invalid ASF assoc_id

Hello I'm new to Informix and I'm having a problem with Informix 9.4 on a laptop with Windows XP. I get the following error in the log file: 12:32:08 listener-thread: err = -25546: oserr = 0: errstr = : Invalid ASF assoc_id. The database server was working just after I installed it, then the next day I couldn't connect to it anymore and I had the error message in the log. I've tried to reinstall but I keep getting the same error looking like this: 12:32:15 Assert Failed: build_smi failed 12:32:15 IBM Informix Dynamic Server Version 9.40.TC3 12:32:15 Who: Session(12, informix@klingon, 0, 00000000) Thread(15, build_smi, 0, 1) File: rspseudo.c Line: 7907 12:32:15 Results: Cannot build/check 'sysmaster' database 12:32:15 stack trace for pid 2136 written to C:\\tmp\\af.3f7f63f 12:32:15 See Also: C:\\tmp\\af.3f7f63f, shmem.3f7f63f.0 12:32:26 build_smi failed 12:32:27 build_smi failed 12:32:27 listener-thread: err = -25546: oserr = 0: errstr = : Invalid ASF assoc_id. in the log during the installation process. Would be very thankfull for any help with this problem, haven't been able to find any documentation describing the assoc_id and what it really means. Kind regards Steinar Dahl