Hi all, Thanks to Mary Sue and her helpers for the work they have been doing to make the wiki more secure. Tonight I am happy to say that the logging on, and the cache clearing advice both work on my Macs. I have uploaded a white flowered form of Crocus banaticus which flowered about 6 months ago for me. The fall blooming Crocus page is at : http://pacificbulbsociety.org/pbswiki/index.php/… The image can be viewed directly at: http://pacificbulbsociety.org/pbswiki/files/… Cheers, Rob in Tasmania