right mouse click not working

Hi, My mouse right click has stopped working in Draftsight. It works perfectly on other programs. I had it working as enter but it suddenly stopped working.

I have downloaded the latest version of Draftsight (2025) to try and fix it but no. 

I have tried re configuring through       Tools-options-user-mouse options.

                                                             Tools-customize interface-mouse options.

                                                             Tools mouse gestures.

None of these actions have worked. I'am desperate to get back up and working can you help???