Facebook status uses random image

Hi,

I was testing my facebook registration on the site and discovered that I can link my already created account to my Facebook!! Yay!!

I sent a posted a test status in easysocial, but when I checked my facebook account I saw not only the few words, but a site link with a random group avatar (which wasn't even on the page at the time!

Any ideas please, cos this looks a bit daft to be honest!!

Cheers
paul