Thank you ALL FOR HELP ....
... makes me fell so good, that you help me folks .... it did work ... and my DRW CS4 is rocking again ... however this problem seams too be on consistent bases, no idea why since other extensions and I have o lot of those never do such a crazy stuff ...
Anyhow. It looks like, that money has been not waisted after all if this community is working so well .... Thank you again !
Cheers.
*j