EVO will restart while on the phone

It has been happening to me as of late. not enough to bother me, but enough to take notice. I'm on my 3rd EVO phone. I had to replace previous EVO's because of internal issues, luckily free of charge but each time I had to wait at least over week because the EVO was on back order. I just hope this isn't a sign of anything bad to come with the phone...

My Evo also reloads almost every time I hit the home button also.  I've gone through system updates and also updated all apps.  It started maybe a month ago.  Frustrating because I have to restart music player or any other app I am running.  Phone is not rooted. 

If it were a software issue, it would be happening to a lot more people. Not just a handful. Have you tried pulling the battery for 5 minutes or so, and/or doing a factory reset? The most likely cause is an conflict with one or more apps imo.

Khassy mines reboots also when u hit the home key or back key. It's been doing it now for two months it software issue. HTC knows about they told their working on the issue there will be a maint..release but don't know when yet. They told me this a few weeks ago....

After the last update I immediately did a factory reset because HTC Sense was restarting a lot.  Then reinstalled fresh only the apps that I use all of the time, not from backup but a fresh install.  My HTC sense has only rebooted itself once, just recently after having received an app update while on facebook.  I was on for awhile and looking at a lot of photos at full screen size.  when I signed out of the browser, Dolphin HD, HTC refreshed itself.  Restarted phone, no problems since, has been several days.  I agree with Kassy, I believe that it results because of conflicts in the operating system  with an app, so my problem probably was with one I didn't reinstall, or if it is one that I reinstalled and it was probably  updated and no longer conflicts, or lastly it came in conflict after the update and when it was reinstalled fresh, it no longer conflicted as it was reinstalled after the operating system maintenance release.  I often turn my phone off and remove the  battery, which I believe also helps prevent the anomaly.

Removing the battery completely clears the cache, including things that aren't completely cleared when doing a reboot. Just like a regular computer. If something is glitching, a full cache clear will often fix it.

Phone started restarting again today, so i pulled battery for 5 minutes, replaced, and the restarting stopped.  It has been one week since the last time.  If I have to do it once a week it is not a big deal.