- Maximum Execution time reached:
On very slow servers, IF installation timeouts (not seen yet): you
can fix that as follows: Open file:
- joomla 1.0/mambo: administrator/index2.php
- joomla 1.5: administrator/index.php
and add line
set_time_limit( 240 );
right after the <? line, remove directories components/com_comprofiler
and administrator/components/com_comprofiler and re-install.

- Memory exhausted error (sometimes Error 500):
Joomla 1.5 with legacy ON and FTP layer ON on PHP 4.x may give error
Memory exhausted if memory limit is 8 Megabytes. In that case, simply
switch legacy plugin to OFF just for the CB 1.2 RC installation, then
you can switch it back to ON if needed. Or add line (similarly as above):
ini_set( 'memory_limit', '16M' ); @ini_set( 'memory_limit', '32M' );