It depends on whether the crash is related to your computer or your project.
What model of camcorder is your video coming from and what format and resolution is it?
When you started your Premiere Elements project, which settings did you select? If you selected the correct project settings, there will be NO red lines above your clips when you add them to your timeline. Is that the case in your project?
Also, what operating system are you using, how fast is your processor and how much RAM do you have? How much free, clean, freshly defragmented space is available on your hard drive?
Are you editing to you C or main hard drive or to a second hard drive?
Have you ensured you have the latest version of Quicktime and have you manually gone to Windows Update (if you're on a Windows machine) to ensure you have even the non-critical updates for your computer?
Brand new computers can be MONTHS out of date.
