new AutoCAD 15 and Phantom lines in model space

[therealjohndoe]

I was just upgraded to autoCAD 15 and now ever drawing I open has phantoms lines streaching across model space going everywhich way. As I move around and zoom in and out the lines change and move, shifting from the differnt points on the real lines or text that is in the drawing. Every fake line seems to touch a snappoint on somthing in the drawing (except for the one that goes to the 0,0,0 point).

there is a point that if I zoom in enough they all disapper but they come right back once I zoom out again. It is the most bizzar thing I have ever seen with any CAD program ever. Please help.

Thank you,

[therealjohndoe]

I was just upgraded to autoCAD 15 and now ever drawing I open has phantoms lines streaching across model space going everywhich way. As I move around and zoom in and out the lines change and move, shifting from the differnt points on the real lines or text that is in the drawing. Every fake line seems to touch a snappoint on somthing in the drawing (except for the one that goes to the 0,0,0 point).

there is a point that if I zoom in enough they all disapper but they come right back once I zoom out again. It is the most bizzar thing I have ever seen with any CAD program ever. Please help.

Thank you,

[therealjohndoe]

Found the Answer

http://www.appliedtg.com/techblog/index.php/2014/04/14/2015-autocad-lt-phantom-lines-appearing-in-dw...

[nestly2]

The phantom lines are likely caused by a conflict between the new 2015 graphics system and your video card/video driver.  Disabling Hardware Acceleration may solve the display issue, but at the expense of some graphics performance/features. You might try updating your graphics driver, and/or disabling the new LINESMOOTHING feature in lieu of disabling Hardware Acceleration if you want to explore other options.

[braudpat]

Hello

Welcome to the Autodesk/AutoCAD Forums !

1) Have you installed the SP 1 for 2015 ?

http://knowledge.autodesk.com/support/autocad/downloads/caas/downloads/content/autocad-2015-service-...

2) Which graphic card on your PC ?

If you have an ATI or a NVidia, have you installed the latest driver ??

Because only latest drivers can handle correctly (with graphic hardware acceleration = ON) the "new graphic" engine of the 2015 ...