Computer won't open program files

Recently, my computer has started having difficulty opening program files. When I click to open, the wait icon appears and then after awhile disappears, but the program never opens. When I check the task manager it doesn't show up under applications. The program shows up when I click the processes tab, but shows no CPU usage being applied to executing the task. I always have 46 processes showing even when I first start my computer. The only process that shows it is doing anything is the "system idle process". I desperately need to get into my TurboTax program immediately. Can anyone help??? I've called Compaq's tech support and can't get an English speaking person to help.