Symptom

When browsing a slide, moving the Y axis to position 0 disables subsequent movement on the Y axis.

Cause

This is a known problem in uScope Navigator v4.3 and earlier. It has been corrected in uScope Navigator v4.5.

Resolution

To resolve this issue, you must power the affected uScope off and back on.

Status

This problem has been corrected in the final release of uScope Navigator v4.5. All pre-release editions of uScope Navigator v4.5 exhibited this problem.

Note
Position 0 on the Y axis is extremely far from the scannable area of the slide. Therefore, it is highly unlikely that anyone would encounter this problem.