No, I don't get any error when I open and log on to the Yahoo messanger. Once I try to open the chat windows by (double) clicking on the user ids of my friends, the chat windows opens but i can not write on it because it already shows the runtime error and asks me whether i will want to debug it. It does not debug if I click "Yes" and follow the instruction. so, i have to click on "No" 6-7 time before the error message disappears . But, once it disappears and I type in the chat box and enter, the message is not delivered but again the same pop up of runtime error is shown. Hairan bhai sake ma ta bhanya ni. i will also try to follow your suggestion and see how that work.