Hi,
When adding a shortcode into my post and pressing update it replaces the shortcode with the actual HTML. It's almost like something is caching it. It does this with all the shortcode plugins I have which is Form Manager and Theme My Login
My plugins are:
Add to Header
All in One SEO Pack
Better WP Security
BWP Google XML Sitemaps
Form Manager
Google Analytics for WordPress
HiFi
Jetpack by WordPress
Ozh' Admin Drop Down Menu
Page Lists Plus
Passive Profit Portal
Pingler
Revision Control
SEO Pressor UNLIMITED
SexyBookmarks
Theme My Login
TinyMCE Advanced
WordPress Table Rename
WP-DBManager
WP Security Scan
Thanks
Keir