i have a major problem. When i start a new sketch and i start a add some dimensions, the first dimension i add isnt appear and i cant add another dimension. wherever i click in the drawing it appears the box of the first dimension i added. Look at the picture i added!
Go to Tools - Options - System Options - Performance
Turn on the option for Use software OpenGL
Let us know if that makes a difference. If not, then you can take the check mark away.
I've seen similar problems when the units are not what you think they are. (you think you're working in mm, but SW is set for M, resulting in the part being so big that you can't see the tiny font of the dimension value)
A quick little test: measure the distance between the two points to verify you're at least in the ballpark.
Jack, Good idea. I've not seen that happen in a long time. I think there are some options to under system options, document properties that allows the text to always be displayed at the same size regardless of model size or zoom level.
It used to drive me nuts to have to zoom in and out to read dimensions!