why have draft sight changed how you input relative coordinates? AND HOW CAN YOU CHANGE BACK TO AS IT USED TO BE PLEASE HELP!!!!!

having to put the @ symbol in front of a input e.g.@50<90 on a mac key board is a real pain.

it was never like this on the older versions! you could just  select the line tool,click the screen and then input from there e.g. 50<90 etc etc.

i've tried every setting to go back to how it was before i reinstalled, it is still like this on my windows machine but i need it back on my 27" iMac.

i was going to upgrade to the full full draft sight package in may when we have moved office but i fear if this change is permanent i will have to go down the auto cad route now as i can't change the drawing style i've been used to for years.

please if anyone can help!