Workspace Starts and Minimize

Hi,
I'm running IFIX 3.1 on one machine. It has been working fine for the last 3 years.
It boots without problems, configuration as usual.

All of a sudden, the Workspace starts, recognizes all the nodes, and minimize and can't be maximize. You can see it running on the taskbar but no way to maximize it.

I've check every log, install and uninstall and don't know what's wrong, or why it does that.

Is there anything i can check to see if there are problems i should be aware of?

Thanks,

Dan.-