Not sure if you went back to read the other issues that started along with the blank email and IE problem. So here it is again.
When I use Safari to log into my WordPress blog, in the password box, it doesn't even show that I am typing anything. No ***** or black dots in place of the hidden password that I'm typing. However, if I log in with IE, it has the black dots as I'm typing the password. That problem also started yesterday with these other ones.
Do you see any connection?