Hello,
I have two problem with CI.
1- Removing index.php in URL in Linux and Windows OS.
2- Multi Language script.
3- PDF which support UTF-8 encoding.

Please help me to solve these problem.

1. in linux you can write remove sintaks , and in windows you can remove with change the parameter. (source : google)
2. do you can explain?
maybe CI is contamination of multi language (Javascript, AJAX, etc) but all of them depend on programmer
3. you can use grocery CRUD , in folder template >> its compatible with foxit reader

i hope my answer can help you

1-In Windows I use Apache 2.2 and I install php+mysql manually, in linux I use apache 2.4 but when I remove I get not found page.
http://ellislab.com/forums/viewthread/217607/

2- I use http://ellislab.com/forums/viewthread/219113/ and now it is good for me.
3- grocery CRUD is really powerful.
jQuery and FlexGrid and I use both?

1. to good for all, you installed phpmyadmin 3.4.5 ....
2. ooh i see
3. maybe you can use flexigrid, bcoz thats compatible anymore

No just removing index.php

never mind