SS1 RS232 problem

[bob at morningstar.com]

|Whenever the Transpac modem is connected to a serial RS232C port of the
|SS1 the boot process blocks.  Everything is blocked while checking the
|hardware configuration probably when polling the zs1 (port B to which the
|modem is connected).

Get the current boot ROMs from Sun.  When we changed all our SS1s from
1.[01] to 1.3, this problem went away and I started sleeping better.