dabbrev-expand ignores case sometimes

[C K Kashyap]

Hi,

I noticed that at times when I do a M-/ and try to complete a word that already exists in the buffer (I assume, this is what I need to do if I need to do what I did using C-p or C-n on vi), the word completion happens but with weird casing. Sometime all caps etc. I wonder if there is some setting I need to do when I get into this situation.

Regards,

Kashyap