Fantastic support, Jens. Your hardware and customer service is outstanding.
One more thing to update on my situation... Last night I loaded up numerous programs in workbench and, with them still running, I loaded up a few games and all was well. However, when I closed all running games and programs I only saw about 54meg of memory freed up. I only say this in case it means the new ACAtune isn't configuring memory properly. Of course I really know and understand next to nothing technically so this could just be workbench or the programs themselves holding on to the memory. I'm only sharing this information in case it may be of some assistance.