Background - I had a perfectly functioning D7 site on my ISP's shared hosting server. I tried to improve security by playing with directory and file permissions, got hopelessly messed up and decided I would just reinstall a fresh system, new database and recreate the pages (very basic site it wasn't much work)
I now have only D7 core installed (on the same server) and keep getting blocked by my ISP for triggering mod_security as I navigate around trying to set up my site. I looked at the error log and found this repeated entry;
[07-Dec-2011 13:25:14] PHP Warning: PHP Startup: imagick: Unable to initialize module
Module compiled with module API=20060613
PHP compiled with module API=20090626
These options need to match
in Unknown on line 0
My ISP's advice was to "Seems that the imagemagick module is doing the damage, could you please disable the module which is trying to use imagemagick and try using GD instead". Aside from that making no sense to me, I said I doubt a module in D7 core is causing the problem when it was fine before. He then replied with;
I just found one of the block reasons
2011-12-07 14:57:13 58.168.20.199 /misc/jquery.cookie.js?v=1.0 HTTP/1.1