It may not be a regex problem. It may be a problem with how your script is invoked.or something like caching Is it a CGI, is it mod-perl, is it some other method? Try printing out to a disk file on the server (I assume you are using a web server and a browser client) to see if the data are even being generated. Also print out the first few letters: the query.

I've had similar problems on IE under NT4. In my case it seemed to be related to caching, but the problem went away after some other seemingly unrelated changes to the page so I didn't pursue it.

If the query is succeeding, I'd check that I had turned off caching at the client, and made sure I closed the connection to the client so it would finish displaying the data (necessary in one or more popular browsers...). If it is a client caching problem, there are solutions and I'm pretty sure you can find a link to one on merlyn's page.

HTH, --traveler