Have you tried:
– deactivating all plugins to see if this resolves the problem. If this works, re-activate the plugins one by one until you find the problematic plugin(s).
– switching to the Twenty Eleven theme to rule out any theme-specific problems.
– resetting the plugins folder by FTP or PhpMyAdmin. Sometimes, an apparently inactive plugin can still cause problems.
i have tried all of these. but found the reason, older WP version works fine!
This is not a 3.3.1 issue. It’s a problem that is specific to your site. Using older versions of WordPress places your site at far greater risk of being hacked.
i know, i’ve had a blog already and just wanted to switch from godaddy to bluehost, my old blog works fine but have troubles on bluehost and can’t find an answer anywhere.
problem solved; have installed older version, upgraded to the newest one and also managed to migrate my blog, finally;