CI checking permitted URI chars....in a perl script?!?!

[eluser]CroNiX[/eluser]
Ah, I bet you're using an older version of CI (Pre v2) and your new host is running PHP 5.3?

If so, and you can't upgrade CI to a more recent version (that is optimized for 5.3), you might try this:
http://riskianawulan.net/2010/11/fixed-t...deigniter/

Another thing you'd want to do is do a global search/replace on the /system dir and change all instances of "=&" to just "=" or you'll have a ton of "assigning by reference has been deprecated" type warnings.

Also comment out set_magic_quotes_runtime() in /system/CodeIgniter.php.