[Serusers] SER Reports "out of memory"

Hi All. I'm using ser-0.9.2 and testing how it works when the location table has many thousands of rows. ser will not start when the location table has many rows. SER loads the first 1344 records and then pukes on the 1345th record with an out of memory error. I've started ser with "-m 512" but that doesn't seem to make any difference. Am I doing something wrong? Also, for my "test" data I simply created a bunch of bogus records in the location table. I did not do anything with the subscriber table. Does this matter? If so, what needs to be done in order to create a large number of "registered" users? Regards, Paul