Can't answer incoming call after system update

[konradp1]

hi
 
I have strange problem with my HTC Desire HD (A9191)
 
I updated to Android 2.3.5 some time ago and since then I have a problem.
 
If my phone is locked, I can't answer incoming call from some numbers.
 
When there is incoming call and I pull the green ring to the bigger ring to accept the call, the phone wants to turn off and asks me to  'force close'. Of course, I can't answer the call anymore.
 
When there is incoming call and I pull the red ring to the bigger ring to decline the call, the phone totally freezes while still ringing. It keeps ringing for around 10-15 minutes and does not react to anything.
 
The problem does not occur when the incoming call comes when phone is unlocked (i'm using it at the moment of the call coming).
 
Please help,
 
K

[Warforged]

Hey K. 
 
This sounds like a force close on one of the android processes that should handle unlock + answer. 
 
First off, when I encounter force close problems with my DHD I perform a factory reset, which up till now has solved all my issues.
 
Now I'll admit I rooted my Desire HD and I have had to boot into recovery to fix the permissions one time. Though if you're not rooted those kind of problems shouldn't occur. 
 
Let me know what happens after a factory reset
 
Cheers.
 
W.