Unable to install virtualisation software

[hitspace]

i got the package installers to work but i dont know if this is related to my previous problem but vmware is not accepting my serial numbers

when i tied to install virtual box it said failed to install virtual box

please any suggestions this is driving me nuts

i tried again and it says it conflicting with another virtual box i do have the open source version running do i have to uninstall it ?

[PmDematagoda]

About the VMWare problem, what exact error do you get when trying to enter the serial number?

Also this thread has been split and the part concerning Virtualisation has been sent to the appropriate section.

[hitspace]

i retried the installation of vmware the serial number doesnt work

im more interested in virtual box though and i know the os version doesnt support usbs from personal experience so i was getting the other version (commerical) but its saying that i have a previous installation thats conflicting ... what commands to get rid of virtual box ose since the add / remove or synaptic isnt working out for me ?

id like to get an answer by a command i can input into the terminal thanks for your help :):)