Can view front-end options links, but get a Joomla 404 when I click those

[ecchy]

Hi,

Re-installed a Trial package after I went into some trouble with the LITE one (overwrites matters). At least I got back all my Admin options and even the front-end login and basic menu screen.

But now the problem is the following:

I can see the front-end nBill page... I can login and see the different links options (My Profile... My Quotes... etc...)

But as soon as I click one of those, I get a Joomla 404, stating at the bottom: "Component not found".
URLs look like that:

MYDOMAIN.COM/index.php/component/nbill/?action=invoices&task=view&Itemid=105

The only 2 urls working are:
http://dev.ti360.ca/index.php
http://dev.ti360.ca/index.php/home (showing the same as previous)

I already cleared cache (Joomla) and nBillcomponent  was refreshed

Thanks again for you precious help.

[ecchy]

* sorry * sorry *

Problem was because of the Joomla default menu...

Just re-saved the one previously set for previous nBill installation, and it worked.