QuickStart and creating a SQLite database

 I am getting a failure while trying to create the demo database:

Writing Database Guestbook in (control-c to cancel):
AN ERROR HAS OCCURED:
SQLSTATE[HY000] [14] unable to open database file

 I can't seem to find any logs anywhere that would tell me what is failing. I have he perms on the whole QuickStart directory tree set so that Apache is the Group owner and has read/write.

 Where next?