Pointer stops working

Hi,

Pointer stops working when I copy and paste and certain other actions. I have tried all fixes that I have seen on the web including options/ use dashed entity selection highlighting, uninstalling draftsight and removing all the regkeys, confirmed drivers are up to date etc. Still doesn't work.

Anyone have any alternative fixes?  Disappointed so far, feels like the product has gone really down hill since they made it a paid app.