Weird problem after submitting poll settings

Hi

This is a problem I've never had before, but it only happens after I submit the settings in the admin inteface.

There is no text and the buttons at the bottom are missing text too.

All paths are correct and chmod'd correctly.

Modify the general settings
URL to poll directory
URL to image directory
Language
Poll title
Vote button
Result link
Total votes
Already voted
Send your comment

above are the examples of missing text.

Anyone got any ideas why this should be happening? lol