I use vbulletin. I have vbulletin installed on 3 different sites. It works perfect on 2 sites but on the 3rd site there is a problem. There are missing lines for the inner border on the FORUMHOME AND FORUMDISPLAY pages and this only occurs in Friefox browser using a 22 inch screen monitor. All others - screen sizes and browsers this site works perfect in. I have been searching for what the problem might be and the solution is for about 2 weeks. Any thoughts or help much appreciated.