Can't see lines as I draw them or see objects as I move them

[bobgonzo]

I just installed 2015 and most everything works fine except when I draw a line I can't see it until after I draw it.  If I draw a polyline I can only see the previous segments I have drawn.  If I move something I can't see something until I place it.  I have an AMD Radeon HD 7970M graphics gard.

[Jay_B]

Sounds like it could possibly be this dynamic input issue?
http://forums.autodesk.com/t5/AutoCAD-2013-2014-2015/Preview-Issues-when-Drawing-Lines/m-p/5202137

[bobgonzo]

Gave it a shot but no dice. I'll be sure to also report to Autodesk though. Thanks for the help.

[Lisa_Pohlmeyer]

There's a system variable called highlight. Type HIGHLIGHT at the command line and be sure it's set to 1.

[Jay_B · Accepted solution]

Check DRAGMODE and make sure it's on.

Didn't think dragmode affected drawing lines but if I turn off dragmode in 2015 SP1 I can't see the line until completing the command either.

When set to Auto or On it works as expected.

[bobgonzo]

Es no bueno Lisa but my boy just after you found the trick.  It was DRAGMODE.  I'll never go drag mode but it works for my computer.  Who am I to judge.

[bobgonzo]

Winner winner chicken chicken dinner.  Jay, you are the man.  Thank you so much.  I feel like I got a part of my soul back.  That was so awful.