The memory usage of OCA web client (IE is used) keeps increasing over time

Hi, we are facing the following memory issue with OCA web client:

) Login to OCA web client
2) Check the memory usage of the iexplorer process for the OCA client.
3) Open a WO query window
4) Close the WO query window of 3) (do nothing)
5) Check the memory usage of the iexplorer process for the OCA client.
6) Repeat 3),4),5)

Memory usage of the Internet Explorer was increasing indefinitely, which was causing applications to freeze and restart was needed.

The ASAP version is 5.2.4 and the JRE is 1.5.0.