Reuven, when I upgraded to 7.3 Red Hat - I started getting similar problems to what you mention using Konqueror
browser ( 3.0.0-12). I suspected that the browser is not fetching/submitting right information from/to the server.
Changing cache setting of the browser did not help - but things work fine if I use a different browser ( Netscape/
Mozilla / IE ). So I concluded it to be a browser-specific problem.