GnuCash Crash when I try to create a report

[aslundberg at rcn.com]

Have loaded GnuCash 1.8.9 onto my Mac G3 running OS 
10.3.9. Works great, except for two problems. 

1. When I try to create a report (or do anything under 
the "report" menu) the program crashes, closing all the 
windows and disappearing. 

Since that first happened, I ge an error message when I re-
open my data file: 

2.  "... can't obtain the lock for <data file>... Do you want to 
continue?" Is this a problem? 

Suggestions greatly appreciated,

Bill.