Often when someone phones me, the phone just locks up. I can't slide the ring up to answer.

Sometimes the ring moves a little.. sometimes not enough. I just can't do anything until the caller stops ringing. The phone becomes responsive again and I have to call them back.

I have just upgraded to 4.0 from 2.3 and the problem is still there. I haven't rooted the phone or done anything special to it..

How can I sort this out?

Phone: HTC Sensation

Often when someone phones me, the phone just locks up. I can't slide the ring up to answer.

Sometimes the ring moves a little.. sometimes not at all. I just can't do anything until the caller stops ringing. The phone becomes responsive again and I have to call them back.

I have just upgraded to 4.0 from 2.3 and the problem is still there. I haven't rooted the phone or done anything special to it..

Apart from this the phone is always responsive and I don't really have any other problems.

How can I sort this out?

Phone: HTC Sensation-xe