Well, the bright side to all this is that I now have Arch installed on a machine with 8 GB of RAM. I can run mainstream browsers like Firefox and don't have to use the "lightweight" browsers any longer.

Very strange

You're right. It logs in and all but when you click "Submit Reply", nothing happens.

Oh, let me install it again and try  

Did you post that from Web? I think the issue is with older hardware on my side. Epiphany just doesn't work with posting although I can read stuff OK.