I opened a project and got a error could not load audio plugs etc etc.

The audi tracks just had the default plugs (track eq, compressor etc etc.

Now when I add an audio track the plugs do not load and the track audi fx button is grey and not green. When I click the button to load those plugs, all the plugs are listed, but the Track eq, compressor are nowhere to be found.

I reinstalled 6.0B but the same condition exists... Any ideas?? thx