Hi.
I assume you use Croogo 1.3.
I'm a total newbie to CakePHP and Croogo in general, but thanks for this question, I improved my site a bit :)
Cache::config('default', array(
'engine' => 'File', //[required]
'duration'=> 600, //[optional]
'probability'=> 50, //[optional]
'path' => CACHE, //[optional] use system tmp directory - remember to use absolute path
'prefix' => 'cake_', //[optional] prefix every cache file with this string
'lock' => false, //[optional] use file locking
'serialize' => true,
));
I uncommented this code in core.php file and played around with it.
You should do the same, and if it still does not help, we can wait until someone wiser shows up :)
Cheers,
Marian Vaclavik