need urgent help problem is "Could not complete the operatio

Hi,

I am new to fck editor and this forum. But I need help its urgent. I am having following error on page load on the page where I have used fck editor.

Version used - 2.5

Usage - On page load I am showing one div and on clicking on it I am loading its content into fck editor.

error that causing problem - "Could not complete the operation due to error 800a025e."

Please reply as soon as posible...

Thanks,
Nish.