After the last system update of Win10 (64bit) my DraftSight 2018 slows down (slow graphic movement, slow zoom). AutoCad LT 2008 on the same PC works without any problem. I have tried to update graphic card driver (surely I have the newest one - GeForce 342.01 driver for card Nvidia GeForce 5800 GT). Before the last update of Win10 everything was fine including DraftSight. During the last opening of Draftsight before Win10 update there was an announcement "Driver of graphic card is out-dated and need to be updated). I tried also reinstall of DraftSight, no success. Any idea ?