Lemmings GS and a Possible RAM Problem

["Tempest" <tempest@atariprotos.com>]

I'm trying to install Lemmings GS on my Apple IIgs but I'm having
problems.  The game was zipped over several disks, so I extracted it
into a .2MG file that is now on my hard drive.  I created a RAM Disk
large enough for the file to be extracted to (3027K) and then I tried
to use Asimov 2.0 to make a disk from the image (writing it to the RAM
Disk).  I got this error:  invalid block count $002D

I thought the issue might be that I was too low on memory (I only had
200K free after making the RAM disk) so I booted from a boot disk and
got about 450K free and tried again, only this time I got a good old
I/O error Code $0027 error.

Does anyone know what the problem could be?  A friend of mine thinks
that one of my RAM chips might be bad.  I have a Q-RAM GS Rev 2 card
with 4MB of RAM in it, and GS/OS seems to see it all (I get 5MBish
total).  I hear you can't put any more memory in the card
unfortunately, so if it is a low memory issue then I might have to get
a different memory card.