Hi all!

I've been an avid user of lyx 1.4 and thought I would install the latest
version.
I uninstalled lyx 1.4 and installed 1.5.1
Unfortunately, when I try to start the program (either directly or by
clicking on a file) I get a message box that states:

LyX has been closed because of an unexpected situation.
This is most likely caused by a flaw in the software.

When you open your documents again, you will be able
to restore an emergency save and continue working.

Would you like to view detailed information about this error?


On clicking 'Yes', I get a window with the following error message:


LyX: reconfiguring user directory
Traceback (most recent call last):
  File "C:/Program Files/LyX15/Resources/./configure.py", line 803, in
<module>
    windows_style_tex_paths = checkTeXPaths()
  File "C:/Program Files/LyX15/Resources/./configure.py", line 101, in
checkTeXPaths
    from tempfile import mkstemp
  File "C:\Python24\Lib\tempfile.py", line 33, in <module>
    from random import Random as _Random
  File "C:\Python24\Lib\random.py", line 42, in <module>
    from warnings import warn as _warn
  File "C:\Python24\Lib\warnings.py", line 258, in <module>
    simplefilter("ignore", category=OverflowWarning, append=1)
NameError: name 'OverflowWarning' is not defined
LyX: Done!
TextClassList::Read: unable to find textclass file  `'. Exiting.
Completed


Any ideas?

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