The Privileged Instruction error is known to occur when using TICK with Windows XP or above and the Internal Speaker options have been selected. This problem which is usually solved by adjusting your security level (more information in the Related Posts section below) seems to occur on some installations regardless of your Administrator level. The current workaround is to ensure you have no active dial up networking connections and change your sound options from Internal Speaker to None or Wave. Instructions for setting up Wave can be found in the help file. The Internal Speaker option directly accesses the internal speaker which is no longer possible due to restrictions that Microsoft have imposed with some Windows XP or above installations.