With in the layer props window i have noticed that all the layers that were using teh DEFAULT linewieght are now set to -0.03 although the default is set to 0.25 in the linewieght settings (there isn't even a value of -0.03 to select ??!!
if a different value is selected then it will change but selecting DEFAULT shows it as being -0.03 any one seen this before
it is a new DWG started from the ACADISO.DWT and has next to nothing in it, I am setting up some Toolpalette content