memory size error?

Just installed D7, and installed almost all modules.  Now I'm getting the following error from the index or home page.  How can I fix this?

Fatal error: Allowed memory size of 16777216 bytes exhausted (tried to allocate 196089 bytes) in /home/****/public_html/inc/classes/BxDolTemplate.php on line 637

Thank

You need to adjust your php.ini settings to dolphin recommended settings.

register_globals=Off
magic_quotes_gpc=On
allow_url_include=Off
upload_max_filesize=300M
post_max_size=300M
max_input_time=3000
max_execution_time=3000
memory_limit=128M
short_open_tag=On

In this case your looking to increase the memory_limit setting to at least what is shown above or higher.