Unfortunately, for some reason or another, I was getting random shut-offs and reboots continually during the day so I was forced to unroot my phone. Having had my Evo since they first came out (2.2), I unrooted it using the s-on zip file (S-on is now on) followed by the PC36IMG zip (which updated and then rebooted). I was hoping that by unrooting my phone, it would stop all of the random reboots and shut-offs. Sadly, it's still happening . So, I thus turn to the forums to ask a simple question: How can I tell, with 100% certainty, that I'm totally unrooted? I plan on taking my phone into Sprint tomorrow and I'm hoping that there's no "trace" that I was once rooted. I'm now back to Stock 2.2 with all the glorious bloatware that came with the phone. I just want to make sure that I don't have any issues in servicing the phone - I luckily opted into the the $8 per month insurance a while back so, I'm hoping that will take care of any issues that may need to be fixed. Thanks for your responses.