4z - Trap 5 @ 0058B361 - End of turn processing - Maybe during defection

This trap occurred during next turn processing (I have autoturn off, so it was after I hit the turn key). The "spy" music (file "spy.mp3") had just started playing so I am guessing a defection was taking place (in my favor, of course).
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Stardock SmartException Logging Information
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OS Version : Windows ME
Video Card : NVIDIA GeForce2 GTS/GeForce2 Pro (IBM)
Application Exception code: C0000005 ACCESS_VIOLATION
Crash Addr: 0058B361 01:0018A361 E:\DRENGIN.NET\GALCIV\GALCIV.EXE

Processor Registers (x86):
EAX:7EFEFEF8
EBX:8392EDC0
ECX:051A2C58
EDX:37373324
ESI:03C7072C
EDI:FDFDFDFD
CS:EIP:0187:0058B361
SS:ESP:018F:00D7F76C EBP:00D7F7D0
DS:018F ES:018F FS:2507 GS:0000
Flags:00010246


Current Application Call Stack:

Addr Frame Logical addr Module Name
---------------------------------------------
0058B361 00D7F7D0 0001:0018A361 E:\DRENGIN.NET\GALCIV\GALCIV.EXE
0051A9DE 00D7F898 0001:001199DE E:\DRENGIN.NET\GALCIV\GALCIV.EXE
0045173D 00D7F904 0001:0005073D E:\DRENGIN.NET\GALCIV\GALCIV.EXE
00469B59 00D7F964 0001:00068B59 E:\DRENGIN.NET\GALCIV\GALCIV.EXE
00465DE7 00D7F9BC 0001:00064DE7 E:\DRENGIN.NET\GALCIV\GALCIV.EXE
0045C95C 00D7FA24 0001:0005B95C E:\DRENGIN.NET\GALCIV\GALCIV.EXE
0045CADC 00D7FA98 0001:0005BADC E:\DRENGIN.NET\GALCIV\GALCIV.EXE
00502C1D 00D7FAF4 0001:00101C1D E:\DRENGIN.NET\GALCIV\GALCIV.EXE
004EA8CA 00D7FB50 0001:000E98CA E:\DRENGIN.NET\GALCIV\GALCIV.EXE
00550B0D 00D7FBC0 0001:0014FB0D E:\DRENGIN.NET\GALCIV\GALCIV.EXE
BAABDFF6 00D7FBEC 0001:0001CFF6 C:\WINDOWS\SYSTEM\DDRAW.DLL
BFF63613 00D7FC0C 0001:00002613 C:\WINDOWS\SYSTEM\KERNEL32.DLL
BFF848F7 00D7FC20 0002:0001B8F7 C:\WINDOWS\SYSTEM\KERNEL32.DLL