It's not really an important issue, but after I had to update my profile lately I realized that it always keeps changing my birthday (actually the number of the day). Every time I enter the correct number, it will let me save it, but it's wrong again when I return.
Why does it do that ?
Hmm, it's not doing this for me? Are you using a scroll wheel when going down the page; I could see this actually the number, but only if it was placed in that field (sorry, that sounds rather complicated). PM what the date is supposed to be and I can check what is actually being saved!
Worth pointing out that this was in fact a bug in the system, affecting users who signed up recently or updated their profiles recently.
For anyone who fits in that category, it's worth checking your profile to ensure your b'day is entered correctly.