any info about this? console crashed after the “?”
[admin@wo0T] /interface ethernet>
Console has crashed; please log in again.
Reboot the router 
Happens sometimes. Or if you type “/tool torch interface=” - also crash… Seems to be an error with reading the interface list sometimes. Reboot (physical is better) solves the problem .
what version? some 5.0rcN had this but - just upgrade
v5.0rc11 on x86
yep, as I said - simply upgrade to the latest version
copy. thanks chupaka & dasiu 