Extensions do not stay Enabled

Hi

Extensions do not stay enabled when shut down and restart DW CS4, I can enable the extensions and use them while in DW CS4. But these do not stay enable.

No pre-existing software, new PC,  Vista 64bit.

Tried running  both applications as administrator to set Extensions, and Disabled all running programs, which did not resolve the issue.

This is annoying, as thes extensions work in CS4 ( Project Seven extensions, pop magic menu, Image gallery), I have tried others extensions from Adobe with same results.

Any Ideas

Thanks