just back from lowyat, bought a screen protector cover the entire screen.
It really make a big different compare the standard size that cover partially of the screen. although there is some bubble on the side of screen, but it look much better than the SP that cover partially.

btw, is the dust on the screen obvious??? how long u used to have dust under the screen?

i bought at the shops at third floor. I bought it at RM35, is a small shop that just sell HTC phone, near the escalator  but when i'm searching for casing which is just in front of that HTC shop too, offering RM25 only for either mate or clear, but is inside their main shop la  so try to search around, coz lots of shop only have the SP that cover partially of the screen and they will tell you that Sensation only have this type of SP which is incorrect.

Oh my, this is pretty annoying. Sometimes it works though. And does it mean that if I use my phone frequently, the static will be built up extremely quickly or something like this? I told them specifically what's the issue. Showed them. First fix was for dust under the screen, they replaced Screen and Touch Panel. After replacing, the touchscreen problem occurred. Then, they replaced the motherboard. And after a few days, BAM! the problem is back.
I have sent it in and they have changed it once. After the change only did I get this problem. So, it's like I sent my phone in to get a problem. Unbelievable
Most shop in Lowyat will sell a properly sized screen protector. First time, I got it free from purchasing a Moov Hybrid casing. That guy was very careful and the screen protector is perfect without any bubbles. That cost me RM85. After my screen and touch panel has been replaced, I bought a screen protector for RM20 and the person who applied it seriously sucks. All corners full of bubbles.
So, make sure the person who's applying for you is good.

Anyway, the first casing purchased from second floor. Very big shop I think the shop got big Mobile Accessories word. The second screen protector was purchased from ground floor HTC small little tiny shop.