Use the EPS pane of the Preferences dialog box (QuarkXPress/Edit menu) to specify options related to imported EPS pictures.

• To control whether QuarkXPress should generate a preview of an EPS file or use the preview (if any) embedded in the file, choose an option from the Preview drop-down list. The option specified in this pane is used only when the EPS preview is being created. If you change the preference, you need to reimport the EPS file.
• Mac OS only: To increase the amount of virtual memory available for rendering large EPS files during a Save Page as EPS operation, increase the value in the Virtual Memory field.