MPLAYER AND FILE PERMISSION

[wonder.nkosi at gmail.com]

Good day.

This is my first post to this group and I hope I will not break any
rules. My name is Wonder and I am a South African based in the capital
city.

I have two separate problems that I need your assistance.

Firstly; When I play a movie using mplayer, in every ten (10) minutes
the screen goes to sleep. I want my system to be able to recognise
that the desktop is in use when playing movies or music. How can I fix
this.

Secondly; I had noticed that files permission is set by default to
'root', how can I change it to 'user'. This means that every time I
open a text file or web page file by double clicking it, it will want
to execute instead of opening it. I must then use the right click
button to chose a program that will open the file every time.

Thanks
Wonder