My magento shop works fine, but sometimes (2 times on this month) there is blank page instead of it in Google Chrome and Only the first step in FireFox. When I press continue button nothing happen. Previous times I fixed this problem by increasing memory_limit (it was less then recomended) and rebooting server. But now memory limit is 2048M it is more than enough and problem still occurs. Somebody can help me?
Problem solved (I hope so) I've checked the apache log, and found 'zend_mm_heap corrupted' error. The solution was to increase the 'output_buffering' value in the php.ini