[Mediawiki-l] Install problem / still get setup page

[News Assi]

	Hi,

I tried to install MediaWiki 1.7.1, but I get only the setup page

The precheck information are:
	--- SNIP ---
Checking environment...
Please include all of the lines below when reporting installation problems.

PHP 5.1.2-1 installed
Found database drivers for: MySQL PostgreSQL
PHP server API is apache2handler; ok, using pretty URLs
(index.php/Page_Title)
Have XML / Latin1-UTF-8 conversion support.
PHP's memory_limit is 32M. If this is too low, installation may fail!
Have zlib support; enabling output compression.
Neither Turck MMCache nor eAccelerator nor APC are installed, can't use
object caching functions
Found GNU diff3: /usr/bin/diff3.
Found ImageMagick: /usr/bin/convert; image thumbnailing will be enabled
if you enable uploads.
Found GD graphics library built-in.
Installation directory: /var/xxxx/wiki
Script URI path: /wiki
Environment checked. You can install MediaWiki.
	--- SNAP ---

In enter all datas (mysql w/o experimental unicode, no cache)

then I get that information:
	--- SNIP ---
Checking environment...
Please include all of the lines below when reporting installation problems.

PHP 5.1.2-1 installed
Found database drivers for: MySQL PostgreSQL
PHP server API is apache2handler; ok, using pretty URLs
(index.php/Page_Title)
Have XML / Latin1-UTF-8 conversion support.
PHP's memory_limit is 32M. If this is too low, installation may fail!
Have zlib support; enabling output compression.
Neither Turck MMCache nor eAccelerator nor APC are installed, can't use
object caching functions
Found GNU diff3: /usr/bin/diff3.
Found ImageMagick: /usr/bin/convert; image thumbnailing will be enabled
if you enable uploads.
Found GD graphics library built-in.
Installation directory: /var/xxx/wiki
Script URI path: /wiki
Environment checked. You can install MediaWiki.
Warning: $wgSecretKey key is insecure, generated with mt_rand().
Consider changing it manually.
Generating configuration file...

Database type: MySQL
	--- SNAP ---

And after this I had to install MediaWiki again.


What could get wrong on my installation?
Perhaps someone could help me, please...

Thanks a lot...