Tutorial Editing Trouble

Making tutorial for Amapola (Pretty Little Poppy). Adobe Premiere Elements 10 keeps acting up. Audio blanks out while editing. Then after saving, the video and audio is out of synch. This happens on other tutorials but after uploading to YouTube, all seemed okay. No such luck this time. Mid-way into the video, the audio is completely messed up.Was at beach while uploading. Had 31 views when we got home. Removed. Sigh. Starting over.  :(