IF that application is taking to the MTS and your server is in the shared mode then it is possible to see this problem. Once way to get out of this problem is to create an tnsname.ora that would have SERVER=DEDICATED and then point your application to talk to that service. Also you minght want to check your iostat and figure out the network congesstion. Some times it would be because there is not enough sort area. For every thing try the first option.
Good luck
Sam
Thanx
Sam
Life is a journey, not a destination!