Questionmarks and slashes stops images from working

[Dynamikken]

I have set magento up to automatically name product image files according to the title of the product. It's very helpful with SEO but if a product title contains a slash (/) or a questionmark (?) it will also be included in the filename and therefore making an errored URL and not displaying the image.

Anybody knows a solution?

[Dynamikken]

Can't seem to get image to work here. But it seems to be a "Netzarbeiter Extension" that i can configure in backend. I use "%name" to get the product attribute "name" as part of the image filename