Hi, I have got the solution: I upgraded hardware: P4 - 2.4GHz RAM 1 GB LVD-SCSI Seagate 18GB - about 10,000 rpm and now it works nearly as good as the winpc 5% slower still, o.k. - but therefor the "?" after solved - what else could I do ? The whole lock-things I tried already, they do not have much inflence on speed, as far as I tested. Thanks Martin