[ic] Form based Search with a textfile don't work!

[admin]

Hello,

I've this Tags :
<FORM ACTION="[area search]">
<INPUT TYPE="hidden" NAME="mv_search_file" VALUE="products.txt">
<INPUT TYPE="hidden" NAME="mv_search_field"
VALUE="sku,description,title,price">
<INPUT TYPE="hidden" NAME="mv_coordinate" VALUE="0">
<INPUT TYPE="hidden" NAME="mv_searchtype" VALUE="text">
<INPUT TYPE="hidden" NAME="mv_matchlimit" VALUE="10">
<INPUT TYPE="hidden" NAME="mv_sort_field" VALUE="category">
<INPUT TYPE="hidden" NAME="mv_exact_match" VALUE="0">
<INPUT TYPE="hidden" NAME="mv_substring_match" VALUE="1">
<INPUT TYPE="hidden" NAME="mv_column_op" VALUE="ne">
<INPUT TYPE="hidden" NAME="mv_column_op" VALUE="rm">
<INPUT TYPE="hidden" NAME="mv_searchspec" VALUE="1">
<INPUT TYPE="hidden" NAME="mv_dict_look" VALUE="1">

and a text file with 11214 products. Sometimes the search function works
well, but
when I add some new products it do not work. I checked the products file, no
errors!
I restarted the server, no result! What can I do?
btw I've placed the search form in the regions/LEFTONLY_TOP file. Is there
another
file where I can place it?


Regards
Erik Kendel