Mental Harrasement by group of collcolleagues including boss

I am working in a real estate company since last 06 years. recently i have got promotion as an asst.Manager(sales & Marketing).As per my work profile,I emailed daily collection & sales report on 12.12.2017 to all concern. in the morning of 13.12.2017,when i reached office & start my computer,computer was note working. I asked to my boss to permit the local computer mechanic. after repeated request,they call mechanic on 18.12.2017.mechanic said that pins of VGA cable have been removed forcefully due to that mother board has been damaged.on 21.12.2017 when i got my computer back after installation of new mother board,i asked to my boss to reinstall dot matrix printer, he told me that some of my working rights have been revoked in working software. my daily working have been transferred to other marketing staff along with printer. I have emailed the same to my president and requested him to get restored my working rights as i am feeling very humiliated. clients are regularly demanding account statement & other status of their property.i also mentioned that i am feeling something strange around me. i have kept that cable as an evidence. i did not get any response from any body. Kindly advise me on the same for further action. Regards Bharti Saini Cont no. [deleted]