Hi Since I upgraded to PD10, I cannot use CTRL-Z anymore. Instead of undoing the last operation, it displays a huge white stop sign on a grey background with 4 big arrows pointing to the outside into the 4 directions. The other CTRL combinations such as CTRL-C, CTRL-V, CTRL_X work fine. I checked my preferences and the keyboard mapping, everything seems to be fine. It appears in all VMs, both with Wind 8.1 and Win 7. It started appearing after the upgrade to PD10. Used to work fine in PD9. Any suggestion? It's very annoying not to be able to use the UNDO function. Walter Sorry, I found the culprit in the meantime! It was a MacOS application called Moom, where the update to the latest version had introduced CTRL-Z as a shortcut, without me noticing this. Thus .... problem solved! Regards Walter
