[jQuery] Problem with blockUI plugin

Hello ALL,
I am facing a very weird problem in IE 6.0 as the $.unblockUI()
function is NOT removing the created page block. I have searched for
solution but have not find any good solution.
Can anyone help me in this and suggest me something .. any clue .. any
hint????? Why $.unblockUI() is not working in Internet Explorer 6.0+
Ashvin