intermittent property panel in autocad architecture

[jap]

I have the object property panel in autocad architecture 2009 that at the start of this morning began to appear intermittently and after a few clicks disappear and obviously it does not work. I restarted several times but the problem remains.
What do I do?

 

[PlannerRoad]

try to install the architecture service pack?

 

[jap]

Thanks, I'm trying to fix reinstalling. I'll let you know how it went.