**Why is the quality of the representation in the drawing window poor? \\ Why is the image slowly built up? \\ Why is no content displayed in the drawing window?** 1) Check whether the graphics support (hardware) is sufficient for a CAD application. 2) Make sure that the graphics card driver is up to date. 3) Gradually reduce the quality for rendering. **See** Settings > Settings > general > [[en:infra-convert:user:config:general#gruppe_„anzeige|Gruppe „Anzeige“]] 4) If #@IC_HTML@# is running in a virtual machine, pay special attention to the "Graphics" requirements in the system requirements. **See** Installation > [[de:infra-convert:user:installation:sysreq|System requirements]]