You might also try to give more memory to the type 2 error causing applications. Some type 2 errors seem to be related to memory issues.
To give an application more memory click on its symbol get the information window (press cmd-i), choose memory (if you have Mac OS 8.x or 9) and give it more memory in the preferred box. If you want to, you can also raise the minimum amount to 1 MB above the suggested and do something like doubling the preferred size...)