Shoutbox

Hi, I have found a strange problem (I think) with Windows Live Messenger... Its really strange, when im at work, sometimes my msn signs itself in and changes my name and personal message and display pic etc to what it was about 6 months ago... At first i thought someone knew my password...but when i realised all my things had gone back to what they was 6 months ago it occured to me that it could be a problem with windows live messenger... It just seems to do all that and repeat the logs I have with people from ages ago... Has anyone else found this problem? does anyone know how to solve it??

Thanks