http://www.zwsoft.com/forum/viewthread.php?tid=2071 Hi, We are new to ZWCAD and are having a problem with slow printin or slow pdf creation of 3D drawings. We have Windows 7 x64 with i5 and when we monitor the cpu processors only one core is being used and it goes to 100%. A 6mg 3D drawing can take 5+ minutes to process. Any suggestions please? tomcoc2240 2012-04-22 05:45:07 http://www.zwsoft.com/forum/viewthread.php?tid=2071&pid=16157 "I have the same problem, I use Windows 7 64bits, when I print to the printer, to pdf printer or even to jpeg printer the system seems locked, I have to wait few seconds to free it again and sometimes the software really locks then I have to go to Taskmananger to kill the proccess. My zw is 2012 PRO. " Me too!!! Does anyone from ZWCad ever answer anyone here? lwebber4563 2012-10-27 19:33:17 http://www.zwsoft.com/forum/viewthread.php?tid=2071&pid=14865 Is there anyone who have got this issue in other versions of Windows? DDWZW 2012-05-03 10:44:05 http://www.zwsoft.com/forum/viewthread.php?tid=2071&pid=14862 I have the same problem, I use Windows 7 64bits, when I print to the printer, to pdf printer or even to jpeg printer the system seems locked, I have to wait few seconds to free it again and sometimes the software really locks then I have to go to Taskmananger to kill the proccess. My zw is 2012 PRO. samuelsindra 2012-05-03 05:14:37 http://www.zwsoft.com/forum/viewthread.php?tid=2071&pid=14856 which version have you got, 2012? it seems win7 64 is really a platform of trouble DDWZW 2012-05-02 10:53:43