Problem : I-DEAS can not be started any more

I have installed I-deas 9.0 a long time ago on a Windows 2000
Professional platform and used it many times without any problems. But
now I am not able to start the software any more. The security log
file shows the following reason :

7:30:18 (sdrc_ms9) Wrong hostid on SERVER line for license file:
7:30:18 (sdrc_ms9)      d:\programme\i-deas\sec\\Sdrc_Ms9.lic
7:30:18 (sdrc_ms9) SERVER line says 000bdb169923, hostid is
000000000000
7:30:18 (sdrc_ms9) Invalid hostid on SERVER line

I really don not know the reason because I have not changed the
hardware and when I run "ipconfig /all" or the flexlm tool I get the
correct hostid which is 000bdb169923 and not 000000000000.

I have not used the software for about three weeks. In this time I
have performed an windows 2000 online update. Could this be the reason
and how can I fix the problem ?