You should find the forum for whichever product this concerns and post your question(s) there.
Here is a link to a page that has links to all Adobe forums...
Forum links page: https://forums.adobe.com/welcome
Please post the name of the program you are using so this message may be moved... since you mention video, would that be Premiere Pro or Premiere Elements?
If Premiere Pro, there is a LOT more information you need to provide for anyone to be able to help
Premiere Pro Video Editing Information FAQ http://forums.adobe.com/message/4200840
Exactly what is INSIDE the video you are editing?
Codec & Format information, with 2 links inside for you to read http://forums.adobe.com/thread/1270588
Report back with the codec details of your file, use the programs below... A screen shot works well to SHOW people what you are doing
https://forums.adobe.com/thread/1070933 for screen shot instructions
Free programs to get file information for PC/Mac http://mediaarea.net/en/MediaInfo/Download
Does your video use a VARIABLE Frame Rate or a Constant Frame Rate?
I figured it out. somehow. Thank you though.