Felix Mori

yeahhh controller changes matter. A Windows guest that booted from IDE wont have the SCSI or VirtIO storage driver loaded at boot, sooo switching the controller gives an INACCESSIBLE BOOT DEVICE or no boot at all. Switch back, insatll the…

hmmm whats first in the VMs boot order right now?

idk man that sounds like bad advice tbh

many laser printers support stadnard PCL or PostScript. A generic driver like Generic / Text Only is too basic, but a PCL driver from the same manufacturers universal driver often works for older models.

if none of that helps, roll back to the previous driver to confirm. if the flicker disappears, report it with your exact setup to the Shuttle feedback channel and stay on the older driver for now. windows update said 'this will only take…