For those who are intrested, some debug info that appears on the screen while installing:
An unhandles exception has occurred. This is most likely a bug.
Traceback: (last line most recent call)
File "/var/tmp/anaconda-10.1.1.13//usr/lib/anaconda/gui.py", line 1074 in handleRenderCallback self.currentWindow.renderCallback() ... .... ...
File "/usr/lib/anaconda/hdrlist.py", line 343 in mergeFullHeaders rpm.mergeHeaderListFromFD(self.hdlist,fd,1000004) IndexError: list index out of range
Hope this helps in finding the bug.