AIM blank information multiplying...

I have edited a contact (without any previous im information and without adding im information). After saving, I see "aim:" next to an aim logo... I edit again to remove it (clicking on "-" next to that new aim information)... After saving I see 2 lines :

aim:aim aim:aim:
and aim(logo) aim:

After 4 editing and 4 resulting line, I stopped it and contact you...