I am importing a 2010 AutoCAD file into illustrator. I have my line weights defined ByLayer in AutoCAD, and have the crosshatch on a specific line weight. when I import into illustrator all the line weights are what they should be except the crosshatch, which is very tiny. The boundary of the crosshatch is the correct weight but the actual hatching is not...I have attached a screen shot of what the hatching looks like. 

Any help adjusting the line weight of the crosshatch?