1) The buttons on the bottom don't always work on first touch
2) Quick Search ALWAYS pops up when I hit the home screen or turn it to landscape
3) Sticking sound when I press the touchscreen
4) Web pages time out
2) Quick Search ALWAYS pops up when I hit the home screen or turn it to landscape
...sounds like from #2 that you're accidentally hitting the search button. This happens frequently, you just have to be more careful.