Wow sorry but nowadays your better of posting to tech support.
These post don't work like they used to on the old forum site.
You may want to install the software that came with the printer in
windows and then make sure that you have the properties set up for
your install set for printing.
Most of this is in the manual.
As for the flash drives that sounds very starnge, I have not seen any
such thing happen even back in 7.10. Are you un-mounting or ejecting
volume before you remove it, if not that would cause many problemst.