Portal freeze when performing Cut link

[5050t]

Hello CATIA users/admins!

Scenario:

1. Start Portal
2. Search for PSN (No CATIA model required)
3. You don't have to open CATIA
4. Create bookmark
5. Expand PSN (eg. All level)
6. Perform Cut Link Operation on some parts

Result:
Portal will freeze during Cut Link operation!

We have:
1. IE6 but problem is also on IE7
2. STD Java ver 1.5.0_08 (1.5.0_16 same behavior)
3. IE Java Plug-in 1.4.2_10
3. Default Oracle 9.2.0.6
4. Oracle Patch 10.2.0.1
5. V5R18SP3HF30
6. VPM 1.6PTF10

Anyone have the same problems???

All suggestions are very much welcome.

Thanks!