I installed a Thawte SSL certificate on to a Plesk 7.5.1 server and the instalation seemed to go fine. The problem is that if I try to access the site by going to https://www.domain.com it pops up the error message, "The name on the security certificate is invalid or does not match the name of the site." If I go to https://domain.com (without the www. prefix) then I don't get the error message. (I did restart my browser before trying that.) Shouldn't an SSL certificate work with both www. and without? It's always worked that way for me before in the past (I haven't had to purchase a "wildcard" certificate or anything for the www to work). Can anybody tell me what I'm doing wrong here or if I'm missing something?