How do I make my transparent pop go solid backround?

http://americansocomleague.simplygaming.org
Go to my Calender and put your cursor on the highlighted date section. April 25th, 2010 You can't read the info on that pop up. If someone knows how to make that transparent backround solid in color, I would apprieciate it bunches.

I would like to learn how to give some transparency to mine, but no one is helping me after several weeks of asking for assistance.

You know what I think, is that the template you choose has a permanant pop up and can't be manipulated. Now that you say yours is solid. That's why I say this. Goodluck!

oh, ok. thanks for responding.