Does Org-mode use the wasysym package for its integral symbols? If not, potential clashes with the amsmath package could be avoided by loading it with the nointegrals option: \loadpackage[nointegrals]{wasysym}. This is a fairly standard way to load wasysym (which I should have recalled for Suvayu's recent problem, thanks Eric for remembering).

Hi Eric,  Thomas,

is there a problem in the default setup of LaTeX export that needs to be 
addressed?

- Carsten