LINES ALL OVER THE DRAWING

[Anonymous]

I'm working with AUTOCAD 2015 STUDENT VERSION and when I open some files I find lots of weird lines all over the drawings, the lines change position if I go back and forth with the zoom. 

If I start a work from zero Autocad works perfectly good and also if I save my files, close everything and open them again they are ok.

In summary it happens that if I open old files (but still made with autocad 2015 student version) I find the lines as you can see in the attached, but not all the old files do like that, some are good and some no.

The files with the weird lines if opened with my colleague's computer (he has the same computer - autocad 2015 student version - windows 10) do not have the problem, they are perfect on his computer.

I don't know how to solve this problem and I have an exam soon so please help me, is it a problem of the computer or an autocad problem?

The only thing that I can add is that lately I had to reinstall autocad 2015 because I formatted my computer, before reinstalling I never had this problem (I've tried uninstalling and reinstalling it several times, I also tried to download Autocad 2016 and install it but the problem continue to exist).

[Alfred.NESWADBA · Accepted solution]

Hi,

welcome @Anonymous.autodesk.com!

Try these steps:

• verify you have installed the latest update/service pack for your AutoCAD (>>>click<<<)
• disable your hardware acceleration and see if that helps
• update your graphic card driver

Good luck, - alfred -