some programs don't run or not listed anywhere!z

Hi i have kde4 in 11.1 and i have the BIG issue

i want to install a virtual machine software so i tried virtual box ose (IT WON"T START!) and i want to install a antivirus i tried clam (can't see it anywhere!) i tried Klam (it start but scanning don't work!) i tried antivir (wont start!)

so i have no choice that i have to use avg crap edition (linux edition) and i want to install my webcam which is a microdia u-cam and i select the right type of system type mine is (x86-64) and I keep getting error messeges!

why is this happening to me with software and why is it hard to run it and install it?

please help me with this issue please! im bagging you

thank you

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Have you added yourself to the vbox users group?

yes i did

For the icons not showing there used to be a bug in KDE 4 for me where I'd have to log out and log back in again for them to show, though this was resolved in 11.1, have you tried it anyway?