I am using NIVO slider light plugin in wordpress. here
The text comes on the slider as expected. Open a new tab and after a while come back to the website and you won’t see the text but the slider still runs.
What I found is that jquery sets the section’s opacity to zero! Why is it setting to zero?
I had the same issue on my website, until I upgraded the JQuery from 1.6.1 to 1.7. It seems like that fixed it.