SAP J2EE Problems

Hello experts.

We're working with SAP Portal 5 SP5 .

From time to time while testing SAP Components (BSP, Query,BW)

J2EE crashes and the message Couldn't retrieve iView appears.

Did anybody have this problem?

The OSS I could find mention to the similar problem but

they refer to SP4 as the solution to fix and we're on the higher version.

Thanks.

N.G