One thing wrong with the site is that we had a bit of a meltdown last night with mass-moving of a number of threads, which required a system restore. Long story short, we lost all activity from 2:00 a.m. March 14 on. We are very sorry about this, and don't expect it to happen again.
I don't quite understand the connection between getting a screen shot and the login issue. Is the site loading slow or locking up to prevent you from getting a screenshot? If you can get one, that would be great...either way, we will look into the 403 issue.
Neither do we. The main reason it has been difficult to nail down a few of these obnoxious problems is that neither myself nor the developers here can replicate them with our own accounts. But we are still trying...please, please remain patient, and know that the issues are not being ignored.