500 internal server error on chopin

[chme9949]

Hi

I receive random 500 internal server error on chopin.
I am running standard wordpress 3 + buddypress plugin.
There is no error in the error log!

Any ideas ?

 

[chme9949]

Hi

Seems a little bit better, but there is still 500 internal server error on chopin.
To reproduce :
go to http://chme.elementfx.com/buddy/
cycle through the tab accueil, activité, membres, groupes, forums, a propos
about 20 to 40 times and randomly you will get "500 internal ..."

Error log is empty.

Regards
Chris