This occured after having captured several planets from other races, so it has the appearance of being intermittant. I have already sent a bug report to boogieback. Here is the SE report so that others may have a chance of recognizing dujplicate crashes and save Stardock the time of sorting them out.
------------
Stardock SmartException Logging Information
-------------------------------------------
OS Version : Windows XP
Video Card : Intel(R) 82865G Graphics Controller
Application Exception code: C0000005 ACCESS_VIOLATION
Crash Addr: 0041070B 01:0000F70B C:\My stuff\Stardock\GalCiv2\GalCiv2.exe
Processor Registers (x86):
EAX:10AFF000
EBX:10AF9F38
ECX:10AF9F38
EDX:0012F800
ESI:10AFF000
EDI:10AF9F40
CS:EIP:001B:0041070B
SS:ESP:0023:0012F780 EBP:108EDBF0
DS:0023 ES:0023 FS:003B GS:0000
Flags:00010202
Current Application Call Stack:
Addr Frame Logical addr Module Name
---------------------------------------------
0041070B 108EDBF0 0001:0000F70B C:\My stuff\Stardock\GalCiv2\GalCiv2.exe
Debug information for each stardock app follows ....