Hi I just upgraded to 7.4.1 from 6.5.5 all seemed to go ok and then ran the importer.

now the forum seems to be working and date is there. All the links are there and working user list calendar etc.

When I click on the control panel to make some mods the control panel looks like a plain html page, and when I click on any of the links I get

The page you've attempted to reach is no longer available or does not exist.

this happins on all links in control panel.

The admin login worked ok when I logged into the forum.

Help please