Linux mathematica problem

[Rich Winkel]

Hi, I'm running 4.10-p2 and mathematica 5.0.
On calling the mathematica FindRoot function, I get

system error(22): __kmp_install_one_handler: sigaction Invalid argument
abort: fatal problem

I haven't been able to find out what error 22 is (I assume it's a message
from the mathematica kernel).

Calling the same function in freebsd 5.3 works fine.
Has anyone else seen this behavior?

Thanks,
Rich