User Portal Application Server Busy

I am having a problem at a client site where periodically the User Portal Application Server reports to the User Portal browser that it is busy. When you look on the server that has the UPAS this shows the finsql task for the UPAS is running at 50% CPU usage. The only way to fix this is to then stop the UPAS and restart it and everyone is happy. Has anyone else had this problem or got any ideas?

Hello, we have thea same problem. The error is only on a dual-processor server. as a workaround we restrict the fin.exe to only one prcessor.