Please keep in mind that after you had reinstalled the pmpsvc service, the pmpsvc tuning in "tomcat6w.exe //ES//pmpsvc" will become default. The "Maximum memory pool", which can be set in Cognos Configuration, will become default too. CogConfig will still show the old value (of cource it will: it does not know that somebody reinstalled pmpsvc

If you did, you should remember and repeat it.