...Small addentum to the bug-report: I "downgraded" to the previously used version and the problem vanished :) Cheers, Norbert -- Dr. rer. nat. Norbert Weiher (weiher at chem.ethz.ch) Institute for Chemical and Bioengineering - ETH Hönggerberg HCI E 117 - 8093 Zürich - Phone: +41 1 63 3 48 32