I have several VMs of different Linux distros and Parallels messes up my typing in all of them. It simply misses my keystrokes like crazy. This does NOT happen on my host Mac or in y Windows VM. I have to type very slowly or Parallels won't capture my keystrokes correctly. If I type "sudo" it will display "sdo" and I have to go back and retype it. Parallels leaves out the space bar a lot too.