xen and Demo lincense expired

Hardware :
2ghz celeron, 2GB ram, CF 2GB
Trying to make fresh install version 2.24

When I install everything except xen then its ok. It gomes up as usual.
BUT . When I try install with xen module then at the boot up I got message :
Demo license expired!
Please reinstall the router.
connect failed (errno=2)
Shutting down…
Stopping services
connect failed (errno=2) VCPUs
System halted.


I think this anomaly started with version 2.23
I tryed version 2.18 and it installs with xen .

Any ideas where the problem might be ?

I experience the same thing, XEN failed to install using V3.23 & V3.24.

see here for details http://forum.mikrotik.com/t/xen-wont-go/28650/1