Are Point Mutations problematic for ToE?

In an AIG DVD called The Code of Life Dr. Georgia Purdom said that all point mutations that have been studied on the molecular level turn out to reduce the genetic information and not to increase it.
Is this true and does it pose any problem for evolution?
Though my last formal biology class was over 45 years ago, I have tried to keep up with the most rudimentary genetic principles. The topic is actually a question I would like to see debated but would be much too ignorant to participate except to ask questions.

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"Anyone who has the power to make you believe absurdities has the power to make you commit injustices."
Voltaire

Sounds reasonable from my limited exposure to genetics. I guess what baffled me was that I don’t have a layman’s definition of point mutation.

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"Anyone who has the power to make you believe absurdities has the power to make you commit injustices."
Voltaire

I’ve heard her say, in a conversation with Michael Shermer that she limits her research to microbial genetics. Is that significant in this discussion?

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"Anyone who has the power to make you believe absurdities has the power to make you commit injustices."
Voltaire

I see what you mean by a continueing loss of genetic information. Even if the process went on for a fairly short period of time I guess all you would end up with is an organism with some serious disabilities.

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"Anyone who has the power to make you believe absurdities has the power to make you commit injustices."
Voltaire

It’s beginning to sound like the point mutations issue would be more of a confirmation for evolution than a problem. Does that sound reasonable?

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"Anyone who has the power to make you believe absurdities has the power to make you commit injustices."
Voltaire

Would it be appropriate to assume a trait for an allele as an example and to speculate what could be a possible change in the function or structure of an organism if information was lost? Can you think of a simple example?

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"Anyone who has the power to make you believe absurdities has the power to make you commit injustices."
Voltaire

Sorry. My comment was directed to anglagard’s Also if the experiment is continued for an infinite amount of time would that result in the moths eventually having no genetic information under the always loss scenario. How would they exist with no genes?
I do realize from all the authoritative information thus far that point mutations are a part of the evolutionary process. Thank you.

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"Anyone who has the power to make you believe absurdities has the power to make you commit injustices."
Voltaire

Thanks. It kinda goes with the name. Check it out.

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"Anyone who has the power to make you believe absurdities has the power to make you commit injustices."
Voltaire

Could it be that Dr. Purdom limits her research to avoid a conflict with her religious belief? She seems to want to stop at a point where an untrained audience might get the impression that point mutations stall at the micro-evolutionary stage. She would thus, knowingly or not, be building a platform to refute macro-evolution that would appeal to the untrained audience. I am speaking from the position of a non-professional listener.It is one of the commonest of mistakes to consider that the limit of our power of perception is also the limit of all there is to perceive. C. W. LeadbeaterThanks, Percy, for the Vitamin C example. That seems simple and reasonable to me.

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"Anyone who has the power to make you believe absurdities has the power to make you commit injustices."
Voltaire