Check the following common issues:

1. Are the drillholes going up into the sky?

   Have you ticked the 'Down Dip is negative' option in the Drillholes Project Setup dialog?

2. Are the drillholes plotting entirely vertically?

   Have you set up the correct Dip and Azimuth fields in the Drillholes>Project Setup? If you do not have a separate downhole survey table then you need to have two columns in the collar table for hole dip and azimuth. If you do have a downhole survey table then you need to make sure the correct fields are matched in the Drillholes>Project Setup.

3. Are your various Field names in the Project Setup dialog correctly assigned?

   Check your mapping for fields in the Drillholes>Project Setup are correct (Dip to Dip, RL to Z, etc).