🚀 go-pugleaf

I just bought a 486Dx-50 compatible with 8Mb of ram.  Yet, when I ran
my civ, it displays a insufficient memory message.  It also displays the
following memory requirement:

	Mem Avail=7030		Mem Needed=8000

I configured the game to use VGA graphics and the SoundBlaster sound board.
The memory needed number above can't mean 8Mb (right?!), I can't imagine
this game requiring 8Meg to run.

For those DOS (5.0) experts out there, I hope you can help me with this
other problem.  When I used "mem" (DOS command) to check how my memory is
allocated, I got the following:

	655360	bytes total conventional memory
	655360	bytes available to MS-DOS
	549088	largest executable program size

       1441792	bytes total EMS memory
       1048576	bytes free EMS memory

       7340032	bytes total contiguous extended memory
             0	bytes available contiguous extended memory
       3743744	bytes available XMS memory
		MS-DOS resident in High Memory Area

Can someone tell me why there is such a large difference between total and 
free/available memory?  My main concern is with the extended memory. Why
don't I have any available contiguous extended memory, and have only
3.7Meg of available XMS memory when I have 7Meg total listed?  When did the rest
go? The content of my config.sys file is listed below: (my own comments
are in parathenses; they are not in my config.sys file)

	device=c:\dos\himem.sys	(installs himem.sys to use extended memory)
	dos=high,umb	(loads dos into high memory)
	device=c:\dos\smartdrv.sys 256 (allocates 256Kb of disk cache)
	files=25
	buffers=40
	device=c:\dos\setver.exe	(runs setver in HMA)
	stacks=9,256

I don't have any TSR installed.  I would appreciate any helpful suggestions.
Thanks

-Alex