Upgrade to 6.11
and if still not working
put “/export compact” command result on the forum (remove sensilble data first)
before eventually downgrade.
http://www.mikrotik.com/download/share/routeros-mipsbe-6.11.npk
[thanks Normis for the link (http://forum.mikrotik.com/t/ipsec-ios-doesnt-work/75174/17)]