Next thing to do then, it select your Variable Valuse to show on the Page and them watch them as you go through your links.
Chances are a value will not be what you think it should be.
Also, avoid using ' = ' when a ' < ' or ' > ' will work instead...
If that doesn't work, specify if your Variable Changes are ocuring off Links or Page Script. This is because a Variable Change on a Link Changes going into the new Page, while a Variable Change on a Page Script changes going out of the new page...
Hope all this helps you narrow down your problem... :)