Hi Karen,

you've correctly diagnosed the issue
There are several ways you could address this.

1 - set up the rule so that only pages that are NOT in the UK version of the web site can make the redirect rule succeed. One way to do this would be to use the Menu selectors to ensure the rule only applies on certain non-UK pages, OR perhaps on "all menu items except the specific UK ones".

2 - in some cases, it may be appropriate to only redirect users once (per session, or maybe forever). After that, if they want to return to the page they landed on originally, you might want to let them do that.
To set this up, when you do the redirect for the first time, you ALSO set a cookie or session variable. You can do this in the Succeed Action (set session cookie A, or set session variable A, etc).
Then make a new rule and place this rule just BEFORE the one that does the redirect.
In this new rule, detect the session variable or cookie (depending on which one you decided to use), which is found in the Quick Rules tab. Then in the Succeed Action for this rule "Stop Processing".

In this way, if they have already been redirected once, then the next time they go to a page, Chameleon doesn't get to the rule that does the redirect, so it won't do it again until the session expires or cookie is removed. (or on a new browser).

Hope that makes sense
Stephen