To whom it may concern: We have been trying to run chimera in Windows XP and unfortunately are not able to do so. The program runs great on the Mac machines though. The only problem obvious for us is, that the collaboratoryHub shortcut does not show up. We can start the program, but when we try to open a file the sequence window starts flickering and the structure does not load. We really like the program a lot and would like to cite it in a paper we are currently working on, but in order to do that we need to get it to work on the PCs. Therefore every advice would be highly appreciated. Thanks! Sincerely, Jutta Roth ''''''''''''''''''''''''''''''''''''''''''''''' Jutta Johanna Roth Department of Ecology and Evolutionary Biology Yale University 165 Prospect Street New Haven, CT 06511 Tel.: 203.432.9741 (w) 203.776.2364 (h) Fax: 203.432.3870