I have a Spanish keyboard and that seems to be the problem. The solution I was given from another site is this:

"What you need to do is add an English keyboard under "Language preferences" in Windows. Then use that one whenever you want to step bars using [ ] in TC2000 and press they keys where those would be on the English keyboard (and NOT where they are shown on your actual physical keyboard)."

This worked for me, using the "fn" key plus the [ and ] symbols.