Installation issues, log file available?

[Ward Romp]

Dear all,

I try to install LyX on windows 7 on top of a fresh (and fully updated) 
MikTeX 2.9 (32 bit). The installer updates some MikTeX files, and then 
claims to be finished (successfully). If I remember correctly, then 
previously LyX ran a full set of tests, which took >10 seconds.

When I try to start LyX after installation, it complains that Lyx will 
only have minimal functionality because no textclasses have been 
found.... ". It offers three options: reconfigure, "without latex" or 
continue. All three fail. LyX starts, but layout files cannot be found. 
The userprofile directory merely contains "cache" and "session".

It seems that something (python script??) crashes during the 
installation and reconfiguration. Is there a log file or can I run the 
reconfigure script from command line to see where it goes wrong?

Regards,

Ward Romp