Łukasz Czerpak wrote: > Magnus Hagander wrote: >> >> 487 is "Invalid address". >> >> Do you have any antivirus or similar software on the machine? If so, try >> uninstalling it and trying again (just disabling it is usually not >> enough). >> > > Yes - NOD32. Ok i will check it. NOD32 is known to cause a lot of issues in general. > Is it possible that PostgreSQL works improperly on WinXP + NOD32 and > properly on Win2k + NOD32? Yes. > shared_buffers = 128MB If you still have the problem after removing NOD32, try lowering this one to say 32MB just to see if the problem goes away then. //Magnus