We the undersigned own a HTC Sensation and are experiencing the issues with our touchscreens as described below. We want HTC to acknowledge this fault, investigate and provide a remedy because this is unacceptable for any device, let alone a high-end flagship model.

Note to signees: Please include in the comments section; serial number (found under battery), country of purchase and build date (found on inside of back cover) to help narrow the problem.

The panel often misses first presses and also struggles with fast brushing movements.

The first issue results in great frustration when typing, as auto-correction of words does not work without the first letter. It also means you often have to tap several times on icons on the homescreen to launch an application.

With the second problem, the malfunctioning results in very choppy scrolling, in the app drawer or in Twitter applications such as TweetDeck. Frequently the touchscreen will register a brushing touch as a press, and will select whatever your finger happened to be passing over at the time. This leads to unwanted opening of applications when scrolling through your app drawer. The touchscreen's aberrant behaviour also makes it very difficult to unlock the touchscreen in a swift, natural motion. The unlocking gesture must be done very slowly and deliberately to avoid failure.

The issue is sporadic in that it can come and go. Restarting the phone sometimes fixes the problem but it will always come back eventually.