> Thanks Olin, I checked options>set>DRC but > still couldn't find it. Maybe my version of > Eagle is too old?? I am using the current version of Eagle (version 4). I just fired up Eagle and checked. Go to a board layout and run TOOLS > DRC. This brings up an applet window with 9 tabs. The second tab from the right is labeled MASKS. In it is a parameter called LIMIT. This can be used to adjust the maximum size of vias that will be covered by solder mask. ***************************************************************** Embed Inc, embedded system specialists in Littleton Massachusetts (978) 742-9014, http://www.embedinc.com -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads