IDS10 on Vista

I installed IDS10.0.TC5I1 on Vista Business and finally got oninit to run after changing the Informix account to run as an administrator and putting oninit into the windows firewall as an exception. After setting my env vars, I can run onstat, etc, but dbaccess just hangs if I try to connect. The last entry in the informix log is the normal "online mode" message. The windows eventlog shows checkpoints are happening. The service looks happy, so why can I not connect via dbaccess? ODBC connections fail also (as expected). I turned off UAC with no affect. I checked local security policy for the following on user informix and they are ok: SeTcbPrivilege - Act as part of the operating system SeServiceLogonRight - Logon as a Service SeIncreaseQuotaPrivilege -Adjust memory quotas for a process SeAssignPrimaryTokenPrivilege - Replace a process level token What am I missing? Has anyone tried any version of IDS on Windows Vista with better success than this?