>>PS I do not use the AD convertor, I never setup the ADC in 16c73, could
this
>>be the problem?
>
>Yes, because by default the ADC is enabled.  You need to disable it.


Ok, Thanx Andy, the problem is solved!

>It would be helpful to know which port pins are causing problems.
>
>Andy
>
>   \-----------------/
>    \     /---\     /
>     \    |   |    /          Andy Kunz
>      \   /---\   /           Montana Design
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Greetz Radboud Verberne