Should i reinstall turbo tax business? When i click on updates, nothing happens. When i click on submit, i get the followingmessage ' error loading type library/DLL'.

Yes, you should reinstall the software. Please uninstall it from your computer, and make sure that you restart the computer after uninstalling. When you reinstall the program try to run the installation file by right-clicking on it and selecting "Run as administrator" rather than just double-clicking it to start.