Hello People! I use AutoCAD 2010 LT version, used audit command try to fixed errors in my drawing. It shows there is 1783 errors has been fixed, however after I use purge command and do the audit again, it shows the same amount of errors. Could some one tell me why I couldn't fix the drawing errors? Thank you. 

Hello ben.nill, instead of AUDIT use RECOVER.Open AutoCAD but not the file.On the top left of your screen clic on File, RECOVER, select the file and let go, it should work.

Upload a copy of the .dwg file and maybe someone here can "fix" the problematic drawing for you.

Thank you, philippe Joseph, It did solved my problem. Have a great day!

Thank you for your help. John Connor. The issue has been solved.