Pretty URLs and drop-down menu problem

[Parapet]

Site is:
  http://www.culliganwaterpros.com

There are 5 buttons in the main menu at the top of the page. When I add in pretty URLs, everything works fine EXCEPT the first two main buttons. When I click on those, it sets off problems in the menu so that it looks like the CSS isn't right--the buttons all go to being their background color and don't work. But all the rest of the buttons, including two that are also drop-downs, work just fine. If it was consistent for all the buttons with drop-downs it would be easier to track down, but I have no idea what's causing this problem since it only affects two of the drop-downs and not all 4.

I used a copy of cssmenu.tpl for the menu and changed the look via CSS.

When I take out the pretty URLs, the menu works 100 percent, so it has something to do with those.

using :
  CMSMS 1.8.1 "Mankara"
  php 5.2.x

Can anyone give me some ideas of what to check?

[Dr.CSS]

Not until you set it to pretty url can it be diagnosed...

[Parapet]

I created a copy of the site on a different server, and installed it there in order to do testing. I used a backup of the database, installed 1.8.1 fresh (not an upgrade). The original server runs php 5.2.13 and an upgraded copy of CMSMS 1.8.1, the server running the copy uses php 5.2.10 and a fresh install of 1.8.1.

So it's definitely not the CSS. Still not solved the problem, but definitely eliminated one possible cause.

[Parapet]

Finally tracked it down... there was some old code on the site from the old pages that were replaced, and even though it was not referred to in the CMSMS site, it apparently interfered with something. I took it all out, and the site now functions perfectly.

Just reminds one to clean out the old stuff on a site that's no longer used.