The problem I have with this PC and re-installing is that none of my USB mice are recognised - or rather they seem to work for a few seconds and then stop working altogether. I had this problem installing the first time around, and I just accepted all the defaults in the hardware tree as I could not figure out how to navigate it by keyboard. Once ArcaOS is installed, the mouse is recognised. So not sure I can progress this one any further.
I also have a Dell N5050 which I was using as my main Linux machine. I tried installing ArcaOS on that using your suggestions in the linked thread above. The Wifi alas was not recognised even with the install genmac/uninstall/reinstall as the card is not recognised, but wired connections do work.
Problems on this one are:
No sound - using uniaud as none of the other choices seemed pertinent. I have set the maxvolume to 100 in the mmos2 in file (mmptn.ini? I forget - not at an ArcaOS machine right now).
Display - I selected SNAP but it does not recognise the WXGA display which is 1366x768. I think that there is a way to make SNAP add that resolution but I could not figure it out. So for now the display is stretched horizontally, which is rather off-putting.
So anyway, for now I shall stick with the VirtualBox installation. It works pretty well for me and I get the benefit of wireless.
Thanks to you and everyone who helped out though - I learnt a lot on the way about OS/2 configuration.