I have some problems with dimensions:
1. the dimensions looks frozen when I use "horizontal", "smart", "vertical" commands.
2. the dimensions will hide (or disappear) when I use "horizontal ordinate dimension" or "vertical ordinate dimension". In other words, I can put thefirst and the second dimensions, but the first will disajppear when I put the third one. Then, I put the fourth one, the second one disppear. ONLY TWO dimensions are shown at one time. The worst thing is all the dimensions (using horizontal or veritcal ordinate dimension command) disappeared (hidden) when I click other dimension command. Autually, they are all there when I convert the drawing to ACAD drawings.
Please help me!
1. the dimensions looks frozen when I use "horizontal", "smart", "vertical" commands.

2. the dimensions will hide (or disappear) when I use "horizontal ordinate dimension" or "vertical ordinate dimension". In other words, I can put thefirst and the second dimensions, but the first will disajppear when I put the third one. Then, I put the fourth one, the second one disppear. ONLY TWO dimensions are shown at one time. The worst thing is all the dimensions (using horizontal or veritcal ordinate dimension command) disappeared (hidden) when I click other dimension command. Autually, they are all there when I convert the drawing to ACAD drawings.

Please help me!