i have seen too many messed up ads mainly in the forums for MacNN.
i know they can't control these "computer glitches" but they appear all the time for me
here is the one i got sick of seeing in the last few days
// Instructions:
// 1. Create a file on your web server called ad.js using a text editor.
// (any name with the .js extension will work)
// 2. Paste this code into the .js file
// 3. Update the "... Javascript URL" in your Fastclick default to point to the .js file on your server.
var dz=document;
dz.writeln("<SCRIPT LANGUAGE=\"JavaScript\">");
dz.writeln("<!--");
dz.writeln("// ValueParameters");
dz.writeln("ValueHost = \"hs0270701\";");
dz.writeln("ValueLoaded = false;");
dz.writeln("ValueID = \"pagebuster\";");
dz.writeln("ValueVersion = \"1.1\";");
dz.writeln("ValueBannerType = \"std\";");
dz.writeln("");
dz.writeln("ValueWidth = 728;");
dz.writeln("ValueHeight = 90;");
dz.writeln("");
dz.writeln("ValueNoText = 1;");
dz.writeln("");
dz.writeln("//-->");
dz.writeln("<\/script>");
dz.writeln("<SCRIPT LANGUAGE=\"Javascript\" SRC=\"http://oz.valueclick.com/jsmaster\"><\/script>");
dz.writeln("<SCRIPT LANGUAGE=\"JavaScript\">");
dz.writeln("<!--");
dz.writeln("if (ValueLoaded) ValueShowAd();");
dz.writeln("//-->");
dz.writeln("<\/script>");