message box - dellprodrg_skin/css ,,, etc,,

i have this box that pops up all the time trying to figure out how to stop it,, it says failed on loading skin name" dellprodreg_skin"   the file " shellcss" is required in your sscommons skin etc,, anyone know how to get rid or install or what this box means? also i have a bigger blank box that runs on the screen in the background behind the webpage and sometime will pop on the screen when the other box comes up, i can close it out but always comes back,, also i try to enter my service tag number to talk to support and it does not recognize the number?? i called dell support on the phone and they dont even have my service tag number showing this pc ever exsisted,, should i just take it back? thanks, jj