Paging URI

[eluser]gRoberts[/eluser]
could it be because of the .html extension is missing from the route?

Code:

$route['request'] = "maincontroller/request";
$route['request.html/:num'] = "maincontroller/request";

to

Code:

$route['request.html'] = "maincontroller/request";
$route['request.html/:num'] = "maincontroller/request";