Inventor 10 registration problem

[sludd]

Hi Everyone

We are running Inventor 10 (among other things, Mech Desktop, Adobe CS) on a school network. The IT guys have had problems in registering Inventor from the start, but we have recently had a problem where the software wont run on individual machines, flagging up a message at startup which says, Inventor needs to be re-registered before it can be used.

As you can imagine, this can be a real problem with a class full of pupils and restricts the number of machines available.

Any thoughts???

[Lazer]

Good old uninstall and reinstall, however I am sure you have already done this? seen a problem like this before once when Inventor was working along side different versions i.e IV11 and IV10 but that was to do with content centre.