Hi guys, I've got this issue. I just did a fresh reinstallation of gta iv, and Ive also installed lcpdfr 1.0c. Now my problem is shown in the screenshot below, and Ive looked around and there isn't much on this topic. Ive tried reinstalling lcpdfr as suggested on another thread, and it didn't change anything. Ive installed other scripts, ped mods and car mods, but this issue was happening even on a clean version of the game with lcpdfr only. I get a message saying "LCPDFR STARTED" instead of "WELCOME TO LCPDFR, ETC"". It is also not showing any instructions about asking for id, arresting people, etc. If anybody in the LCPDFR community or on the development team has any ideas how to fix this issue, please do post them. 

You haven't extracted all of the data. Specifically, the en-US folder which contains the text data.

Thank you for your reply. I figured something wasn't copied over correctly (i used the manual installation) so i used the auto installation to make sure everything was done proper, and it works now :)