I have a problem with my iphone that says to me that i have 1 sms
"on the summerboard (Inside the Red Badge)" when i read it and the "notification in the badge with 1 sms" goes away.

But when i reboot my iphone and it says again on the summerboard that i have 1 sms and when i click on the sms button it shows the sms that i have already read last time.

Is there any way to fix this? Any help would be appriciated.