It was like this... I had my Bootdrive on the FastATA4000 as primary master and the CD as secondary master with at the time an empty IDE HD rack as secondary slave and nothing else. Installed the software and got the CD to work right away. As there is (was cause I now have instlaled the fix) a delay without a HD on the internal IDE controller I thought I just move over the HD and get ridd of the delay (and thought the small IDE disk I had for system could stay there and bigger drives that I didn't have just then aimed for storage of files, work, games etc could go on the faster controller). Moved the IDE cable from the FastATA4000 controller to the Internal controller. Booted her up and as predicted the delay was gone, however so was the CDrom (got error message that the device couldn't be found). Weird I thought.. and tried different things to locate the CDRom but all attempts failed, nothing found it. I thought "what did I do before this happened? move the HD", so I moved the HD back onto the FastATA controller and the CD popped up right from boot.
Weird but it's a fact that it happened so I thought I just have to live with that and so I kept the boot device on the FastATA controller and installed the "anti delay hack" onto the internal controller to get rid of the delay.
System works pritty darn fine now but my IDE HD rack is secondary slave and it will not show the harddrive installed before I make a reset. (sigh... Mediator reset, OS3.9 reset, manual reset and presto *cough*)