CAD Software Forum

Posted: **Wed Mar 05, 2025 1:28 am**

I know that this is not recommended, having differing versions on the same PC.
However this has not caused a problem previously.

I have been trying to debug a problem with a lisp file and wanted to test it on an older version. While the program opens and displays the 'grey' screen It will NOT open a drawing.??????

Posted: **Wed Mar 05, 2025 6:09 pm**

Hi Steven,
Yes, sometimes when you install the new version, the previous one does stop working.
Try to reinstall the previous version, it should fix this issue.

Posted: **Thu Mar 06, 2025 5:14 am**

Hi Quan,
I'll give that a try

CAD Software Forum

Version 12.1 NOT working after installing 13.0/13.1

Version 12.1 NOT working after installing 13.0/13.1

Re: Version 12.1 NOT working after installing 13.0/13.1

Re: Version 12.1 NOT working after installing 13.0/13.1