Hi. Why does my Acad 2005, or 2004 sometimes work very slow? Some of this files are the size of 1 MB. Usually this happend when I explode something,or input some object (it is not necessery block). Till this time it work good! I can solve this only if I open new blank file and copy/paste to a new file. I tried to purge but it does not help! Is it possible to find out a problem? Sorry for my bad english.