Dear all, thanks for your interest and valuable help! It definitely shed light on the situation and I will have a look on the suggested tools. Drew - I would be really interested in your grounded theory work. Could you send me a softcopy of the articles you mentioned? Thanks again, Ulrike -- Der GMX SmartSurfer hilft bis zu 70% Ihrer Onlinekosten zu sparen! Ideal für Modem und ISDN: http://www.gmx.net/de/go/smartsurfer