Catalyst driver version numbering system may have changed somewhere around this point ..
*Full uninstall and subsequent install of the 11th May 2011 drivers may correct the problem with Wurm not exiting properly, ie it keeps its memory allocation and continues to be listed in the task manager. See [[here || http://wurmonline.com/forum/index.php?topic=55575.msg504251#msg504251]here]
=== NVidia Problems ===