This is an issue that Facebook pushed out over the weekend that impacts all canvas apps that use Facebooks supported JS SDK which we do. "Current Status: Javascript iFrame resize issue We are investigating an issue with Javascript iFrame resizing across some applications. Please follow bug 17577 for more information. Further updates will be posted there as they become available." From the source: http://developers.facebook.com/live_status Hopefully they will get it fixed shortly. All cut off pages are almost always due to issues with Facebook. I will post FB updates here as we get them.
When this happens often you can mouse click near the bottom of the page then Drag the mouse pointer down and that will scroll the page for you. Yeah it's a pain in da butt but at least you can still play while FB fixes things.. "Mouse Click near bottom in the 'game frame' not the FB page. Then click and Drag mouse pointer down to scroll the Game Window"
Or, if your mouse has a scrollwheel in it, *click* that scrollwheel and then just move the mouse pointer in the direction you want to page to go (up/down/left/right/diagonal/etc). One or both of these methods should work.
This issue has been resolved for most players. If you are still experiencing issues, there are some things that you can try: try logging out of Facebook and clearing the cache of your internet browser as it will force a re-download of Facebook scripts, try updating your current browser, try using a different browser and try updating your Java. Hope this helps.
you can also use the "Tab" key to tab to the box you want to click. It's easier than fighting with the mouse