Dear.
I use pre-patch-2.0.39-final for IP-masquerade PC.
and work fine ( work 24 hours in a day ).
H/W Mitsubishi Electoric Apricot XEN-PC
motherboard ( unknown )
CPU Pentium 60MHz
Memory 32 MB
Ethernet card ( ISA ) NE2000 Compatible ( RTL chip ) x 2
Disk Seagate 8GB