VM install of Ubuntu Ibex crashes during install attempt

[sgtstadanko]

Here is the log file:
Log created: 2008-06-30T21:03:38.484233000Z
Executable: /usr/lib/virtualbox/VirtualBox
Arg[0]: /usr/lib/virtualbox/VirtualBox
Arg[1]: -comment
Arg[2]: Ibex
Arg[3]: -startvm
Arg[4]: 346a1385-97eb-4e4a-229d-326bb4898f3f
internal REM fatal error: rc=VERR_INTERNAL_ERROR cpu_outb

!!Assertion Failed!!
Expression: <NULL>
Location : /build/buildd/virtualbox-ose-1.5.6-dfsg/src/recompiler/VBoxRecompiler.c(4679) remAbort
internal REM fatal error: rc=VERR_INTERNAL_ERROR cpu_outb

I have tried adjusting the memory and different CPU options to no avail. Does anyone have an idea?

Thanks

[stefan.becker]

I think: upgrade VBOX to 1.62, downgrade Ubuntu to 8.04.

It makes no sense to test old Applications on Pre-Alpha Distributions.