I know I posted this before, but it's kind of urgent and I figured it would get more responses in its own thread. Thanks in advance for help.

I completely screwed up. I was messing with the buffer size in Reaper and I put it down really low to get rid of latency, and now it won't respond everytime I open it because of how much stress it puts on the computer so I can't change it back. I tried downloading a new version in hope that it would go back to the default settings, but it still won't respond... any ideas?
Start -> Programs -> Reaper -> Reaper (reset configuration to factory settings)