Hi,

I am not being to access any functions in my desktop and I don't have an OS besides Ubuntu 10.04 Lucid Linux and I am new to ubuntu. I think I rebooted my computer thinking that Google Chrome crashed. I opened Google Chrome but it showed opening message but never opened so I restarted my computer. and when my system was loading ('i was playing with keyboard dont know what I typed') and when by ubutnu loaded, I was unable to access anything some of characteristics are listed below

I cannot hear any sound

I cannot access wired ethernet connection on the right corner where I usually enable to access interne and I have no internet.

There is no local apache server either. when ever I try to start apacer I get setuid must be root or something.

When I type sudo then I get message setuid must be root.

I cannot access orther external storage devices like pendrive and portable hard drive and cannot mount my other drives with FAT32 filesystem.

When I try to start my apache webserver with out typing sudo then I get message cannnot open socket or something like it.

EDIT:: i remember also doing command

 chown -R www-data / 

earlier and got error message

EDIT:: and i cannot shutdown my computer, it only logs off