Getting Inactive sessions in oracle

Hi all,

I am facing a strange problem. On application level we use 'apps' user to login in oracle. It was working fine earlier. But now a days when we login thru it the performance becomes slow,when I checked the sessions, it shows me 250 inactive sessions.The max limit of sessions is 400.

Then I have to manually kill the inactive sessions and application starts working fine . Any idea about this problem?

Oracle version is 10g version 2

Iplanet version 4.1

Platform Sun solaris 5.8

Thanx and regards

[548 byte] By [santosh024a] at [2007-11-27 0:18:37]