1st, More information needed for someone to help... please click below and provide the requested information
-Premiere Elements FAQ http://forums.adobe.com/thread/1042180
2nd, The Tutorial Links Page http://forums.adobe.com/thread/1275830 may help
Premiere Elements FAQ List (2 pages of FAQ as of September 2013) http://forums.adobe.com/community/premiere_elements/premiere_elements_faq?view=all
Premiere Elements TIPS List (6 pages of Tips as of September 2013) http://forums.adobe.com/community/premiere_elements/premiere_elements_tips?view=all
Details are needed to help you. The basic questions to start with
1. What version of Premiere Elements are you using and on what computer operating system is it running? What are your computer resources.
2. What are the properties of this video that you import into your Premiere Elements project...video compression, audio compression, frame size, frame rate, file extension, interlaced or progressive, pixel aspect ratio? What is the size and duration of this project?
3. How are you exporting the Timeline with this content? What are your choices in the Share or Publish+Share area of the program? What happens...you cannot export a file to save it to the computer hard drive....you cannot burn your Timeline to a disc (DVD or Blu-ray)...?
4. Is this problem for just one project or all your projects? What happens if you open a new project and try the export?
Those are the starting details needed for us to help you.
We will be watching for those details. Please do not hesitate to ask if you need clarification on anything written. We will try to overcome the language difference so that we can get you moving forward with your project.
Welcome to the forum.
If you have PrE 7 thru 12, you will use the Share, or Publish+Share Tab, and settings there, to "export" your Timeline.
As I mentioned in my post (2) in your thread, more details are needed to help us help you.
A thought just came to mind, since we do not know what version of Premeire Elements that you are using, let me ask this for you to think about.
Do you have Premiere Elements 7? Or did you have Premiere Elements 7 and have moved to a later version of Premiere Elements?
Premiere Elements 7 comes with export opportunities in the Share section of the program. But, it also has a convenient "sharing" opportunity under File Menu/Export/Movie. Please be advised that, after Premiere Elements 7, the File Menu/Export/Movie does not exist. The File Menu/Export after version 7 offers only a chance to save a title created in the program's Titler.
We are looking forward to your details to sort out the information that you need to move forward with your Premiere Elements projects.