MySQL - PHP - limits...

Hello. Is there a records limit when browsing (a sql SELECT) in PHP from a MySQL table? I´m browsing a table with PHP from MySQL, and something is wrong, if the table has more than 5047 records, the browse appears blank. Additionaly, if make the browse in a child window (target="_blank"), the limit becomes lower: 437 records. My SQL query is: SELECT * FROM my_table ORDER BY my_order_index The way I "solve" the problem is adding LIMIT 5047 to query (or 437), just for testing. This works fine. My table has 11300 records, with 9 small fields (average 10 bytes each). I run SuSE Linux 8.2, Apache2.0, PHP 4.3.3, and MySQL 4.0.15. Any idea?. Thanks in advance, Alex Ortiz