ibisgroup

Ok
the post that solved my problem is:

Title
WP-Cache blip after PHP upgrade

Section
WP-Cache

To do
1. Open wp-cache-phase2.php file* in your favourite text editor
2. Find out wp_cache_ob_end function
3. then inside that function find out line with: ob_end_clean(); (it should be line 219 or about)
4. and finally replace that line with: ob_end_flush();

thanks….

:]