I'm running the CVS snapshot of bios built with Cygwin on WinXP and I get the following error:
$ ./bochs
00000000000i[APIC0] local apic 0 initializing
========================================================================
Bochs x86 Emulator 2.4.pre1.cvs
Build from CVS snapshot, after release 2.4.pre1...
2009-04-27 19:08:05 UTC in Bochs x86 PC emulator
