I am having following problem and hope that someone can advise

I open a website with my Nokia N9 and then add the link to my home screen and also give the link a name. Then I move the icon into the right folder and then later the icon just turn into a green big dot. Still the link is working perfectly.

Can anyone advise or have the same problem ?

Also sometime the phone acts very strange like programs open without touching the icon, calculator starts typing in numbers same like sms or messages. without touching things happen.

All programs are updated and I did not jailbreak my device