Speed camera update wont go away !

[Mcbean]

I get an update for speed cameras virtually every day when i switch my 550 on - i tick update and off it whirls and it comes up with your Tom is upto date after 10 mins ish but a few days later it reappears - its 7.67 mb - what am i doing wrong - updating with power connected but not through computer

 

[Willy875]

Normally the radars are updated twice a week on Tuesday and Thursday.