Board Thread:Questions and Answers/@comment-8572429-20130423002527/@comment-3552584-20130423015708

Easy fix for that. You just need to change the key that opens Rei's minimap. I don't have tekkit running at the moment, but I believe the lower right button in the minimap options (after pressing "M") is the key-mapping settings. I personally have "," (comma) set to open the map options.