JD-

The way most of these programs work is to allocate many smaller files on the drive and overwrite them simultaneously. After it is done the files are deleted and the space is considered "erased". If the program did not complete the files will still be there. I would look to see if many strange filenames were created at about this time look at them and delete them if appropriate. Did your test not complete?

Dear friends,

It's been sorted, as my broadband modem went down for more than a week, so no prompt reply.

I had Norton uitilities on my PC, so there's some kind of "protected deleted files", I just emptied that bin, then everything is OK, all the free space is back.

Thanks.

JD