@dking64 Where you using a custom WP Carousel Theme?
I'm not sure about this because I haven't checked it, but I think that WordPress update system just replaces the entire folder of the plugin with the newest version.
I removed some themes in WP Carousel 1.0 because I merged them into others (just check the Default theme - it can be configured to look exactly equal to the theme «Default - Kubrick»). If you were using one of the removed themes, WP Carousel will try to load them, as it thinks they exist, but they don't, and you should get a PHP error like:
Error near line XXX in file NNN [bla bla bla] file /wp-carousel/themes/your-theme/index.php can't be loaded
(It is not exactly the error message, but if you read the message you'll notice that WP Carousel can't load a file, and that that file is a file of an old theme).
To fix it you have two solutions:
1) Just change the theme of the carousel that uses a theme that doesn't exist.
2) Just upload again the theme.
If you were using one of the WP Carousel 0.x default themes, you can download a previous release and upload the theme.
But o.x themes won't work as expected in 1.x because I made a some changes in the theme API and they might fail, so the best thing you can do is upload the old theme and then change the theme to one of the newest themes.
If you don't get any error, you probably have disabled PHP error reporting. If you enable it you'll find the error.
I might be other problem, but I think the problem is WP-Carousel-theme-related.