I have been through lots of forums and checked various posts on similar topic but non seems to work out for me.
I have freshly installed XAMPP 1.7.7 on my Ubuntu 11
Though I'm using Mac OS 10.9, this solution may work for someone else as well, perhaps on Ubuntu.
In the XAMPP console, I only found that phpMyAdmin started working again after restarting everything including the Apache Web Server.
No problemo, now.