I have to agree, most CAPTCHA systems I've worked with do not required text to be in caps. Most larger big name sites CAPTCHA's systems allow caps or lower case. If you ask me people are not use to having to put in caps imo.
I've noticed people fail the CAPTCHA a few times while signing up (at my site), and for some reason it makes their account like 3-5 times too. This is a problem if you ask me.
I've looked at the TPL files, and I can't seem to find anything on the CAPTCHA input for the registration, and domain search. If I could find the CAPTCHA input code this should work to solve my problem:
<input type="text" name="name" onKeyUp="this.value=this.value.toUpperCase()" />
support.bebosoft.com/forum/viewtopic.php?t=1028&highlight=captcha
That may solve the issue, but I'd much rather have the option to allow the customers to put in caps or lower case.