Is Auto reboot a common bug?

My Ativ S Autoreboots after I end calls With My jabra supreme Bluetooth handsfree. If I end a Call using the "button" on the handsfree it takes aproxomatly 10 Seconds, then the phone reboots.

The strange part is that it is only with the Jabra handsfree it reboots. If I use the Plantronics Bluetooth handsfree in my car, everything works fine.
 
I had an ATIV S for thirteen months which l unfortunately recently destroyed. While I did really enjoy the phone it restarted for me often more than weekly. Always when web browsing. More recently I also started getting really bad freezing up when opening my SMS. Frustrating at times but I got used too it.
 
I've had my ATIV for 6 months or so, and today it suddenly rebooted while sitting idle (screen off) on my desk. First time that this has ever happened (to my knowledge). Running GDR2.
 
I have the same problems with my Samsung Ativ S. I had random reboots before installing the GDR3 update also. Strange point to me is that it only happens when I'm on WiFi, sometimes more than three times a day. Very annoying! A hard-reset didn't help.