I use CB conditional during registration. If invalid capatcha code is written in the field and the REGISTER button is pressed then along with "wrong security code" the following errors are shown:
"
Warning: preg_match() [function.preg-match]: Delimiter must not be alphanumeric or backslash in /home/www/z156654/htdocs/components/com_comprofiler/plugin/user/plug_cbconditional/cbconditional.class.php on line 282

Warning: preg_match() [function.preg-match]: Delimiter must not be alphanumeric or backslash in /home/www/z156654/htdocs/components/com_comprofiler/plugin/user/plug_cbconditional/cbconditional.class.php on line 282
"
Please help me!

I used REGEX option for multiple check box with text field. I turned off and it is ok.
I used it for the following^
1)If user selects OTHER alone or with other options in the multiple checkbox another textfield should apper.
2)In this field he includes some additional information.

Now I use "Equal to", Value=Other. But in this case additional text field appears only if OTHER is selected alone.
How to realize the opyions described above?

Actually, I used as you suggested the following:

and now the field "мои интересы" is not shown in anyway (if OTHER is selected alone or not, another field is not shown)

Thank you very much. Should I place the issue in incubator tracker?