After my first move I am unable to drag pieces to move them.
Which browser are you using? Have you tried using a different one?
There are known issues with Chrome extensions ...
does-anybody-have-problems-with-chesscom-by-using-google-chrome
and toolbars ... (see technical-difficulties, sticky-cursor)
The chess.com toolbar is a browser-specific plug-in.
For Chrome, removal instructions are here ...
For IE, instructions here ...
(In general, if you use google to search for disable browser addons or uninstall browser plugins, you'll find what you need.)
Also, have you tried clearing the browser cache …
im-trying-to-play-chess-but-i-cant-see-the-board
After my first move I am unable to drag pieces to move them.