LyX 1.5.3 issue : article.layout not usable

[Geevarghese Philip]

Hi,

  I got LyX 1.5.3 installed today from the deb package at 
http://lyx.cybermirror.org/bin/1.5.3/lyx_1.5.3-1_i386_etch.deb . When I 
start up LyX and try to open any article (even the one at Help -> Latex 
Configuration) I get the error message

"The layout file requested by this document, article.layout, is not 
usable. ... LyX will not be able to produce output."

and I am not able to get any output from LyX, as the message says. The 
configuration log (after I run Tools -> Reconfigure) reports the report 
class and a lot of the other common classes as missing. The 
corresponding layout files are, however, present in 
/usr/share/lyx/layouts/ . And anyway my previous LyX installation 
(1.4.3) was working just fine before I to this upgrade done.

Please help me get LyX back working properly.

Thanks,
Philip