zeus - 1:07 pm on Apr 18, 2012 (gmt 0)

Im not sure, but since april 2011 I was hit by Panda, but none can be 100% sure if it Panda. Today I have seen something strange, I seem to be no.1 from page 4, im not loged in and I have deleted cookies, but im only no.1 on IE8 not firefox, also phoned 2 to check and there im also not no.1.
What can this be, a start of good ranking again or something els.