关于DRC的菜鸟问题

借人气发帖求教哈

第一回做pcb，好多不懂的，向各位求教：

在运行DRC的时候出现Short-Circuit Constraint 的错误提示

类似的有好多

复制如下：

Protel Design System Design Rule Check
PCB File : Documents\PCB2_PCB.BK1
Date     : 14-Apr-2006
Time     : 09:00:47

Processing Rule : Short-Circuit Constraint (Allowed=Not Allowed) (On the board ),(On the board )
   Violation between Track (8760mil,7620mil)(8760mil,7705mil)  TopLayer and
                     Pad -K(8760mil,7705mil)  TopLayer
   Violation between Track (8000mil,7520mil)(8000mil,7705mil)  TopLayer and
                     Pad -K(8000mil,7705mil)  TopLayer
   Violation between Track (5380mil,7860mil)(5520mil,7720mil)  TopLayer and
                     Pad -K(5360mil,7855mil)  TopLayer
   Violation between Track (5360mil,7860mil)(5380mil,7860mil)  TopLayer and
                     Pad -K(5360mil,7855mil)  TopLayer
   Violation between Track (8083.448mil,4255mil)(8141.551mil,4255mil)  TopLayer and
                     Pad -K(8083.448mil,4255mil)  TopLayer
   Violation between Track (7945mil,4255mil)(8080mil,4120mil)  TopLayer and
                     Pad -A(8083.448mil,4120mil)  TopLayer
   Violation between Track (10014.482mil,4255mil)(10085mil,4255mil)  TopLayer and
                     Pad -K(10014.482mil,4255mil)  TopLayer
   Violation between Track (9700mil,7705mil)(9745mil,7705mil)  TopLayer and
                     Pad -K(9700mil,7705mil)  TopLayer

快晕咯，应该都是一样的问题，提示超过500个，求教大师们多多指点啊，万谢

线与线之间短路了。

我觉得，在protel里，在同一个地方重复绘线也会造成这种错误。