I am not able to access any of the information in the chm for the 2010 ctp.
Ooops, I feel a bit daft. I am running Windows 7. The fix: right click the .chm and click unblock in the properties dialog.
Good suggestion but the problem still exists. The problem may very well have something to do with our internal web(non)sense. Thanks for the suggestion!
Move the .chm to the root of your drive (e.g. C:\) and open it from there, you've probably got it in a long/incompatible folder.