Up-side down dimensions


Could someone please look at the attached file. Some of the dimensions are up-side down. When I rotate them 180 degrees about their mid-point they look okay. Then I save the file and they revert back to being up-side down. Is there a way to make them stay right-way up short of dropping them to elements? I think it has something to do with the ACS orientation. (Does anyone know how to permanently rotate the ACS in a DWG file? I've never been able to do that).Thanks.