problem commands not recognized adt 2012

[RobyM900]

Good morning to all,
I am writing because I hope you will be able to help me, and I will explain briefly to you the problem:

I have dwg that with autocad lt 2013 work well without problems

Now I stand using autocad architecture 2012 (adt 2012) and these designs have a problem, that is the program does not recognize the basic commands made by the command bar or the curtain, for example: "select similar" - "purge" and many more...

What could have happened? What can I do?


Thank you very much

 

[3DeOltre]

for the purge command, you have to write deletes on the command line.
I tried on mine, the similar select works; try to restore installation (control panel->cambia->repristina)