I recently started a new job and am familiarizing myself with the existing drawings here. I am working on version 08 (was previously on 07). I opened a dwg in 08 and received an error message "Newer AEC Object Detected" stating that some commands would not be available. With no other option I opened the drawing and discovered it was in metric. I went up to the Format tab as I normally would to change the Units to Architectual and discovered that there was no option to change the units. Even typing in Units in the command bar didnt do anything.
It seems as if this drawing was originally created in 07 and now OPENS in 08 but you lose commands??? It used to be that you couldnt even open something it was created in a older version, no? Luckily a PC in the office does have 07 and I was able to open it there to change the units over but I cant do this every time....any ideas how I can resolve this issue?