Thanks for the reply !
1. I am installing the compiletc extension now.
2. The file is NVIDIA-Linux-x86-295.20.run (Retrieved from NVIDIA website to be compatible with a particular notebook videocard)
3. I did not even think to check in the AppBrowser for drivers! I'm always making things more complicated...
also 4. Thank You!!! bout to close x and try to install one more time... if it still doesnt work, I'm going to just use the AppBrowser one.