Baby Lock Pro-Stitcher BLPS3 Instruction And Reference Manual page 104

Problem/Symptom
Buffer Underflow
System Restore or System Repair message
on boot-up.
Pro-Stitcher User Manual
Corrective Measure
If a message with the words Buffer Underflow appears
while stitching, it is an indication that data is not getting
to the motors quickly enough. This may be due to
something in the computer tying up the CPU. Although
it may be possible to resume quilting by simply pressing
red X box to close the error message and then pressing
the Motor Error lightning bolt button at the top right-
hand corner of the screen, it is best to cancel the
current design stitch-out, save the pattern, and re-boot
the computer. Use the New Start Point function
if necessary to resume from where stitching was
left off.
If a message appears on boot-up (black screen, white
text) that asks whether to run System Restore or Start
Windows Normally, select Start Windows Normally by
using the keyboard. Plug the keyboard into the open
USB port using the USB extension cable and press Start
Normally and the system should resume as normal.
The computer will default to the System Restore screen
(more of a typical Windows blue/white screen) if you
do not select the Start Normally option in time. If this
occurs, use the power switch to reboot the computer
and try again.
Troubleshooting | 9.5