Post a small snippet from your drawing, and we can fix it real fast. Be sure to include one of the troublemakers.
Oh wait a minute ... those sound like ARCHITECTURAL ticks.
You can fix them in your DIMSTYLE dialog box.
Choose the dimstyle giving you trouble, click MODIFY
SYMBOLS & ARROWS ....... reset your 1st & 2nd Arrow Styles to something that suits you a wee bit better than