@carlos-morales

Hi and welcome to the forum

We need more information.

A more detailed description of the issue you are having - eg what steps you have taken, which dialogs do not open etc, a screenshot of the issue may help.

Computer specification, Windows version and program version, see this topic for what is required and please quote processor and graphics card make/model in full, and also what monitor/screen resolution(s) your are working with. 

Are the graphics card drivers up to date?

What video format and resolution are you importing - download and install MediaInfo and analyse one of the clips and post the results, see this tutorial on how to setup MediaInfo and analyse a video clip for all the data required.  

I would suggest you put this information in your profile signature so we do not have to keep asking for it.

John EB
Forum Moderator