I installed the Better Keyboard app and ran into problems with my eris not booting/operating properly - error messages. I can't finger the BK app because I had also installed several other apps prior to the reboot. I yanked most of them off and the eris seems to be stable now. I may get the nerve to reinstall it...

 

I've had this problem, try to rotate the phone if you can and then start typing.

 

I'm having this problem also. I do have better keyboard installed, however when the problem arises I've tried killing processes one at a time until I find what's got it locked up, however I still haven't found the cause. Restarting the phone works if you are impatient, it usually starts working again on it's own after 10-15 minutes..... Rotating it to landscape and back does not help..