Chrome caches pages for faster page loading. With the new website update this is causing some users problems. Please do the following to resolve your issues.
[ol][li]Click the wrench icon in the upper right corner.[/li]
[li]Select Options -> Under the Hood -> Clear browsing data…[/li]
[li]Uncheck everything except Empty the cache[/li]
[li]Click Clear browsing data[/li][/ol]
Finally, try to log in or reply to a post.