Question: Maple 12 hangs on startup

I installed Maple 12 under windows XP. The machine satisfies the hardware requirements given in the documentation. Activation was confirmed.

On startup, the welcome screen appears. After entering the document/worksheet window, it stalls. CPU usage is close to 100%. I waited about 30 mins and had to kill the application.

Maple classic and command line maple work fine.

On this machine I previously had Maple 11 installed, with the same problem.

Is there something I can check to see what Maple is doing? The problem is that it never gets to the starting worksheet...

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