Re: i cant login to runescape
I have to say. RuneScape have recently updated their graphic settings to up their game. So you will need to make sure you have the latest of the Java SDK as people have provided you with the links.
After that, there is ways of adjusting your screen resolution, and type of detail game you'd like to play RuneScape in. It can be accessible from the main RuneScape page, as you proceed to login.