Hi,
Indeed, I did slingplayer upgrade it last night.

The last few days I have been running some other tests on my media pc graphics card (ati-tool and rivatuner) to confirm that it is working correctly, and no heat/fan issues etc. From what I can determine, the graphics card is woring ok (apart from some errors in event viewer to do with catalyst control centre). These errors seem to be another issue with ATI releasing some incomplete code in their drivers. There are many threads on other forums for this. Though the errors are there, they dont seem to affect the system. As a note I have noticed the same errors on my other pc too. (also an ATI card, but older by a year)

To eliminate other issues, I tried to run my slingplayer on my other PC, and have experienced the same issue of freezing (though this doesnt hang the whole system, just the picture, where the sling player can be restarted).

So I tried to get hold of the slingplayer upgrade (V1.5.0.325), but couldn't find it on the UK support site. I am running Sky+ HD through my slingbox in the UK. However I found I could download from the US site, so I tried this. On testing on my main pc last night, it ran through the night :) (9 hours). So the next test is to install the same slingplayer version on my media pc and test that.

I have one issue with the US version though, my virtual remote control is wrong. It displays a default black one. I have tried selecting all of the Sky remote options and can only get one to work (the basic sky, not sky+). The issue with that is that it doesnt have the play/fwd/rwd features.
Does anyone know how to get the correct remote? OR, is there a UK version of the player at V1.5.0.325?

I will keep you updated on the tests on the media pc.....

Cheers,
Tim