Not without more details.
How is it not working? (Is it frozen, not appearing, not accepting values, slider wheel stuck, ???)
Does this happen in drawing or model sketch mode?
Do you have an approved graphics card & driver?
it pops up one min and it will work for a while then it will quit popping up. its nothing major but its annoying to get in a rythem and then it stops working and then you have to click in the actual dimension box to edit the number and we have solidbox computers my boss said they are made to run solid works. i didnt know if it was a glitch or if i hit a button that turns it on and off.