When using the Alternative PHP Cache (APC) optimizer the install jumps back to step 1 after finishing the install. This happens in opengoo 1.4.1 and 1.4.2 (didn't test 1.4.0).
Database tables are created and files config/config.php and config/installed_version.php are created. But config.php only contains: <?php return false; ?>
My server configuration is:
APC 3.0.19
PHP 5.2.9
Apache 2.2.4
openSUSE 10.3 (64-bit)
When I switch off APC, the install finishes as expected.
After the install I can use APC again without any problems.