Strange problem with commands and layers

Im using autoCAD 2005 and up until today it was fine. Now when I open any drawing when i click on an object it tells me its on layer 0 although if i turn off a layer the objects turn off so they are still on the right layers just not showing as such. Another thing i noticed as well is that when i select an object then use a command it asks me to select it again. This is very annoying and any help would be much appreciated.

Thanks in advance, Sean

going to try a re-install. will see how it goes.

Figured it out just before I re-installed. It was the PICKFIRST command that was turned off. What a stupid command, whats it for anyway? Why would anyone want to use it?

I can see pickfirst solving the selection problem, but are you saying it solved the layer issue too? That sounds more like a block or an xref issue.

Yes it solved both. I meant that when you click on an object e.g. just a single line this happened. I find it very strange and I dont know how it got turned off. I never used the comand at all.

Have you used any lisp routines recently? Some lisps change system variables and do not reset them when complete.

I dont use lisps at all. I dont really understand them.

You're not alone in that my friend. Understanding how to use them is one thing, but understanding how to compile the code? Now that gives me a headache!

I find it very strange and I dont know how it got turned off. I never used the comand at all.

It's not a command, it's a variable.

See here: http://www.cadtutor.net/faq/questions/32/My+PICKFIRST+variable+keeps+resetting+to+0