Acer :: 6920G- Webcam, Blue-ray And A Speakers Query Too

I've had this laptop for a day now and am having some issues which I wonder if anyone could help me with.

1. Integrated 'Crystal Eye' webcam

I can't get it to work with Live Messenger. I can only hear the audio from the other person (no video). They also can only hear me and not see me. When I try the Audio/Video tuning wizard my webcam shows fine?

2.Acer Arcade Deluxe

I tried out the Blu-ray drive when I first tried out the laptop and it worked fine. There was a prompt when the Arcade software was first started to inform me that there was a software update available and that if I didn't update then some Blu-ray discs may not play. I ignored the prompt originaly and as I said Blu-ray dics played fine.

I decided to update the software as was recommended but as soon as it was updated, Blu-rays no longer played, nor did normal DVD's. All I got was a multi-coloured blank screen in Arcade and that was it. The disc didn't even spin up.

I uninstalled Arcade and re-installed the original version and it works again. Anyone else had this problem? Any work around?

3. Built-in speakers

The speakers on this laptop sound amazing especially compared to my old Aspire. However, when watching say, a DVD, then whilst the sound is impressive for laptop speakers, speech sounds very off centre (weighted to the right channel). However, all other background sound etc. is separated normally. I notice that the speakers are set a little to the right - could this be the reason?

4. CineDash Media Console

I'm finding the responsiveness of the touch panel hit and miss. Is this the same for everyone else? EG. adjusting the volume - I slide my finger up the curve to turn up the volume and sometimes it works fine and others I have to do it a few times before it responds. Some for the other buttons, like 'ENTER' - sometimes a light touch is all that's needed, other times I have to press it hard.....................