A user reported the following:
"java 7 update 4 not working
play game RISk on pogo.com and when get a advertisement during the game. Game give erorrrrrrrr and shut down the game
I delete 7 update 4 and install 6 update 32
jdk-6u32-windows-i586.exe this one working
I do not konw 7 update 3 work or not
BUT 7 update 4 NOT WORKING
Delete this update and make or return working. 6.32 WORKING"

I was able to reproduce this.
1) install 6u31 and go to: http://www.pogo.com/games/risk?pageSection=ag_1list1_img_risk&stMinverPageSection=category and play the game.
2) now unistall 6u31
3) Install 7u4 and again go to http://www.pogo.com/games/risk?pageSection=ag_1list1_img_risk&stMinverPageSection=category and try to play the game, this time around it will get stuck at the advertisement screen (Screenshots included as attachment).