Okay, here's a good one that just started happening to me.
I'm using ACA 2009. I open a project and try to create a new view or construct. When I create it I get an error that says "Failed to read file (insert file path here)". I'm too lazy to type the path. Then I have to refresh my project to see the new view. Wierd.
So I click to open the new view and I get a message that it "cannot be opened because it was created by a more recent version of autocad, use trueconvert......"
I'm running ACA 2009, don't have 2010 even loaded on my PC yet. So how could this be? What the hell is going on??
It has me crippled because I can't create any views or constructs within my project. Help!!
oh yeah. I shut down and restarted ACA. It didn't work.
I have it set to save as a 2007 dwg in Options>open and save tab.