We are running AutoCAD MEP 2015, Windows 7.

Part of the text on the drawing and / or on the title block disappears. Also when we plot sometimes some of the text appears on the screen but when we plot the text is not on PDF or hard copy. This happens a few times a day and we have to re-boot the computer to fix this issue. I can pull the same drawing up on another computer and everything is fine. I changed the video card and it is still happening.

Thanks