Beware that some licensed versions are supported by the OEM rather than by OnTrack. In such cases the OEM usually offers help, FAQs etc. on their web site. Try using a slower mode or disable fast modes altogether. Mode 3 and especially mode 4 is not always easy or feasible to pull off. Especially since not all adapters follow the ATA-2 specification really closely.
Some controllers seem to configure themselves according to the capabilities of the master drive.
This can mean trouble if the slave handles only slower modes. Removable drive brackets may also cause problems with fast PIO modes for roughly the same reasons. All modern drives support error management, which completely hides any bad sectors that may be on the disk off factory. Even a single bad sector is sufficient grounds to return the drive under warranty. If you want to continue using it, the drive should be viewed with the utmost suspicion.