Update..... Nero is aware of the problem. Below is part of an e-mail from tech support.
"thank you for your e-mail and please excuse the delay.
I talked to our developers and they were already able to reproduce the problem so please excuse my previous e-mail. The problem is not that Nero takes up to 4GB RAM but the Windows Vista cache Nero uses takes up to 4GB RAM.
The problem will be solved with one of our next Nero updates but unfortunately I'm not able to tell you with which version as this task is currently in work.
Should you have any further queries, please do not hesitate to contact us again."
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