Login errors

I’m having login problems. I generally have to type in my password several times before it finally takes it and lets me log in. I use my username (jcald1) which was set up with a gmail address. Sometimes I try to logon by clicking on the Google icon, but then I’ll see this error: “422 The change you requested was rejected.”
For this forum I actually had to sign up separately using my GitHub account.
I should also mention that in IE 11, after logging in, the page doesn’t display correctly. I don’t see the drop down next to the repository name, or the project settings icon.