Hello everyone!
I've installed AutoCAD 2011 and used for about two months normally without any problem (stand-alone license). After that it started to appear a small black window at start (as seen on pic.) and when it appears the program stops responding. The screen doesn't appear everytime I start the program, only 9 times out of 10. Please help me if you have any info about this bug!!!
I've tried reinstalling, same result! Will retyping license help me? And how can I do it!