Help Whenever I play games in the arcade I get logged out?

So the last few days when I've been playing PacMan, I start the game, and then when I die, the arcade screen just goes black, and when I refresh the page or click on a link I'm logged out. I don't think this happened before, because at one point it used to save my highscore, but now it just tells me to log in or register when I've finished playing. I cleared my cookies, and I started using a different browser (I was using IE, but now I'm using Chrome) but it makes no difference. Has this happened to anyone else, is it a glitch, or is my computer screwing up? XD Does anyone know how to fix it?

 

Do you sign in using the remember me check box? If not the server logs you off after 15 minutes (if I remember correctly) of being on one page such as a single game in the arcade.

However I don't know if that is related to the inability to submit a score. I certainly hope not.

 

that might not be the problem, because after I played a few games, like the Sonic game, it would always log me out, and I wasn't playing for more then 15 minutes either, as well as having the box checked