I recently installed a new cpu cooler, and I noticed that the copper on the top of the heatsink would push onto the the case. The next day, I cut some holes on the panel according to where the copper was, and then that was it. The day after that though, I noticed that the computer now vibrates the whole desk, when it didn't vibrate the day before, or the day before that. Is there anyway to fix it easily, such as just putting something under the computer? Thanks.