I am working with a client who is facing issues with database corruption after a physical hard power off (the machines are at remote sites, this could be a power outage or user error).
They have an environment made up of many of the following consumer grade stand alone machines:
Windows 7 SP1
PostgreSQL 9.2.4
If you're using 9.2.4, you are missing about 4 years worth of bugfixes. While what you're talking aobut sounds like other issues, you should really upgrade that to something that doesn't have loads of known bugs and then re-run the tests.