Hey, I have a late 2009 27" iMac running Snow Leopard with one main admin user account, with no problems. When I add another user account and attempt to log into the new account at startup or using the fast user switching menu, the blue screen of death appears. The longest I've left it is about 2 hours, and it didn't progress from there at all. The only way to get rid of it is to restart the computer and log in using my main account. I've deleted the new user account and tried again several times, and with different usernames. Please could you suggest a way to fix this? Is it a problem with disk permissions or the location of my home folder? Thanks! Nick.