Hi, I've just started playing Deus Ex:HR, but I seem to be running into a few problems.

Basically, it freezes and then crashes to desktop fairly regularly. It seems to happen when people are being killed/taken down, but that's probably just a conicidence. I have a Radeon HD 5770 and Windows 7 64 bit. I've put the graphics settings generally to max (aside from the Texture Filtering) and it seems to be running fine, if a little laggy.

Is there anything I can do to prevent the crashes please?

Many thanks!