@Ashley or @Tom - I can PM you a link to the project.
I am using beta R99 - and it's been working great - but I just tried opening a project this morning, and it appeared to load fine, but 3 seconds after loading Construct 2 crashed ( windows dialogue comes up with the "searching for solutions to this problem" box ).
I uninstalled and reinstalled Construct2, and the crash doesn't happen, however it seems all the sprites are invisible in the editor, though on export or testing of the project via local host, they appear in game as normal.
Specs - Win 7 64-bit Home Premium
Intel i3 540 @3.07GHz