bluetooth issue iphone 4s and dell inspiron duo

Dear all,

My iphone 4s has troubles pairing with my dell inspiron duo laptop. The iPhone perfectly pairs with other blue tooth devices. The dell inspiron does too (with other devices. Unfortunately they do not pair with each other.

In fact they did once. Then suddenly I lost the connection and it never came back.

I already reinstalled the bluetooth drivers on the dell, that did not work

I already re initialized bluetooth on the iPhone, that did not work either.

How to solve this?

Regards, Kees.