I installed the newest version (3.4.01) today, activated it, and half my content had disappeared. entire right side bar was gone, widgets not even in holding area. also header images were gone. I went back to 3.3.3 and will watch threads

http://cascobayboaters.com/

I installed the newest version (3.4.01) today, activated it, and half my content had disappeared....

What do you mean? were posts gone? or something else

...entire right side bar was gone...

did you check dashboard->appearences->widgets to see it things were in the right inner sidebar and also if the sidebars are set to display
ATO->Sidebar & Widgets->LEFT sidebar: Display on:
ATO->Sidebar & Widgets->LEFT INNER sidebar: Display on:
ATO->Sidebar & Widgets->RIGHT sidebar: Display on:
ATO->Sidebar & Widgets->RIGHT INNER sidebar: Display on:

also header images were gone. I went back to 3.3.3 and will watch threads

remember, header images are stored in each copy of the theme (in atahualpa333/images/header) so you have to copy them into the new copy of the theme (ie atahualpa34/images/header)

I did not check "inner sidebars", guess I should have, but since I had no inner sidebars originally, it didn't occur to me that they might have migrated.

No posts had disappeared, but sidebars were a mess. Attempts to rebuild them didn't stick, a bug Ive noticed on current version. Just seems a little quirky sometimes, no biggy.

I don't remember having to re-install header images on previous upgrade, maybe I did, I dont recall. Anyway, Since tweeking the new install would have taken a little while to rebuild, and it was during a busy traffic time and I didnt want the site to be messy for an hour or so, I just went back to 3.3.

After skimming the threads posted after the new upgrade was made avail, I dont seem to be the only one, so I'll stick with 3.3 till it seems things have calmed down, or I have more time during off hours to mess around with it. Thanks

Header images need to be copied (at least from 3.2 to 3.33 they did). I too lost my sidebar widgets (ads, banners, etc). Switched back to 333 and then removed the widgets in 333 and put them in the new WP inactive widget area. Turned on 3.4 and then dragged the widgets back.

Interestingly enough, it only affected the right sidebar.

I did nothing with turningf off or on interior sidebar displays.

FYI, I like the add a widget anywhere. (and I was able to figure it out myself)

yeah it was my right sidebar too. was totally empty. Left bar widgets were all wrong, some had jumped from right to left, it was a mess and would have necessitated several hours rebuild based on what I knew at the time. I wasnt in the mood. I'll give it a try again next time Im wide awake at 430am and am only getting hits from Finland.

I don't know whether this is a related problem, so excuse me if it is not:
I upgraded today to 3.7.13
I also enabled CDN via S3 with WP Super Cache
I lost my header and all images on the sidebar and posts.
I turned off the 'CDN enable' on WP Super Cache and all my images returned
Except... I have no header - i.e. no images or text.
I am not very experienced and am at a loss as to what I can do to restore the site. I did export before I did things. Any suggestions (www.mind-phronesis.co.uk)

My suggestion - go look at the stickies in this forum