yerm, i've narrowed it down thanks to that last post: the info wasn't "get"ted from a form, so obviously there was no http get info, or the page wasn't in get mode, or whatever. i guess i really should be getting the vars from the query string.
problem is that echoing (or otherwise accessing) the $QUERY_STRING variable, seems to cause the script to time out. $_ENV["QUERY_STRING"] seems to be echoable but i can't parse_str() it (timeout), $QUERY_STRING is plain unusable - either returns empty or (more often) causes a timeout. I'm thinking this is most likely a configuration problem, but i've really got no idea where to start...
Anyone know why it might happen? I can see that the variables are beautifully populated with my values using phpinfo(), but can't access them in the normal course of a script execution...