I created a table in TinyMCE advanced on my contact page for www.thebakingyogi.com and the png images (that are the same as in the upper right corner of contact page) in the table are not showing up as transparent. I am running the 3.9.1 version of WordPress. Please help.

Do you have a caching plugin active?

I believe I do. WP Super Cache is active.

Do you understand what a caching plugin does?

I guess not if my same transparent image shows up as transparent in one place and not the other.

A caching plugin makes a copy of a page and puts it into a cache and displays that cached page to anyone who visites the site until some event - like a period of time elapses or someone manually flushes the cache - happens. At that point it will create another copy of the page to be displayed.

Test (you will get 50% for each correct answer - passing grade is 100)
1) if a page, like the 'contact' page is cached and someone makes a change to that page or the theme, what will the visitor to the site see?
2) How can you change this effect?