Hi compmore1
You will probably get the same thing when optimising. This is NORMAL with MYOB. Not Responding is common during verification, Optimisation and FY Rollover - do not interrupt as a process is still running in the background - only the main process is not responding. Leave it as the process can take hours esp with larger files. If you interrupt it you corrupt the file.
Find out how to check if a process is still running on your operating system as this varies between versions. Only end the process if it has stopped completely, ie not consuming any CPU etc.
Regards
Gavin