Oh no Acadia, my heart goes out to you after all the problems you've had.
When you install some programs they need to reboot to install properly before you can use them. They should however warn you and ask you if you want to reboot.
Does it reboot right after you install something?
This isn't normal behaviour and I suggest you go through the awful process of contacting the support people (again).
Maybe someone else here can give you a more educated opinion.
Best of luck.