Some people are to funny.... After summarising a day of serious network problems withing the company we discoverd that a subcompany located in another city had lost contact with the central IT systems for the whole time. When we called them they said that the suspected that we were doing something and had been on cofee break while we where working... the thought of reporting the problem had'nt even occured to them. Cofee break for a day... just got to love centralized IT systems.. :)