Hello.
Sorry about my defenition. I mean the VCC-pin. And I dont think that it is relevant how other pins are connected. I tried different connections and have the same troubble. The thing is that it is one sekund interrupts in the power supply every five sekund, and cause of that it is a condensator connected to the power supply to keep the pic alive. That is working fine, the troubble occurs only when it is powered up, and only when the condensator is connected. This was working fine with a basic stamp but a pic is obviusly more critical.