Gnucash dies when

[Jon Loose]

I've just completed my first year using gnucash for home accounts, and it's
been excellent on the whole.  System is xubuntu (with gnome in addition to
xfce), gnucash is 2.2.6 (from ubuntu repos).  

It seems that my system didn't go down cleanly last night, as there is a
lock file remaining.  When opening gnucash today, I'm asked what to do about
the lock file.  I say 'ignore' and the dialog disappears, but then gnucash
just dies - so I have no way of getting to my data.

Any thoughts much appreciated.  I hope I haven't just lost a year's
information.

Jon