slow start problem of autocad

[Claudio Inzitari]

Good morning

I'm new, I hope it's the right section.

from this morning, some dwg files that have always opened regularly in ac 2010, open with extreme slowness (about 1 minute) with the writing in the bar "replacement of (simplex.shx) with (univ) regeneration current model", and the application tells me "not respond" for all these seconds of waiting.

What can happen and how can I solve the problem?

thanks, greetings

 

[Tristan]

try opening the file, launch from the prompt the -modif listscale command and choose the 'restore' option then save.