I am using Premiere Elements 10. When I upload my video into the program, it runs perfectly. As soon as I add any editing to the clip, the video gets jumpy. Any help would be appreciated.
Probably an underpowered PC, out of date drivers and/or mismatched project settings. At the start of your project there should be no lines above your timeline (if there are you have the wrong preset). After adding effects you should see a red line above the affected clips. You can then press [ENTER] to render a preview - the lines will go green.
Does this help? If not:
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Thanks for the help, Nealeh!