Internal Storage problem

[CDK]

I have the trouble with internal storage on my Magican. There is a folder, that can't be deleted (it was a file before, but now it's became a folder - it seems like it was a FAT error).
Is there any way to format the internal storage?

[grzesMDA]

Create any file on storage card (or in memory) with name same as folder on storage and copy it to storage. Coping operation will failed but folder on storage will get file attributes again. Now you can delete it.