setNumRows(0) crashes

I have a very simple example where I add a row to a table, set some text into 
the first column, and then setNumRows(0) and the program crashes with 

*** glibc detected *** double free or corruption (fasttop): 0x085762e8 ***

Environment
SUSE LINUX 10.0 (i586)
perl-Qt -Version: 3.008-132 Installed: 3.008-132 
perl 5.8.7-5.3

Am I doing something stupid? I'd be happy to tar up the files and include them 
here if that would be appropriate.

Thanks,

Joe Claborn