Whenever I get a miss-call with the balance instantly showing after the miss-call and I press a button instantly trying to unlock while my 6500 is in the process of showing my balance along with that 2 tone message sound, the 6500 Slide FREEZES! Any button I press afterwards, I get absolutley no response, and I have to resort in opening the back cover and remove and re-insert the battery to switch my phone off and on again. This is the only problem I had with this phone so far and it keeps happening whenever I miss a call while my phone is keypad locked and then I press any button while my phone is making that 2 tone message sound and showing my balance at the same time. So it seems that the nokia 6500 slide doesn't like this multiple process. Also at times whenever I restart my phone (after removing battery), I try to access my contacts list and it won't let me, so I had to resort to even select 'Reset to Factory Settings' to view my saved contacts again! All this should not be happening!