Hello everybody,I have a problem with YQL spelling queries that is very annoying. Can anyone help me?

I have an application that is using YQL to get word and phrase suggestions 
(something like a "Did you mean?") with a query on search.spelling.All right until since a few days ago I only get the following error : 
http-status-code":"999","http-status-message":"Unable to process request at this time -- error 999".The documentation suggests that the error is due to Yahoo's services are saturated. I've found on forums that could be because I have exceeded the number of requests but I can say that this is not the case (I'm working on a test environment with only about 10 queries per hour).url : http://query.yahooapis.com/v1/yqlquery : ex: select * from search.spelling where query="query" and appid="appid"I have tried creating an account in the Yahoo Search BOSS but the problem persists. (http://boss.yahooapis.com/ysearch/spelling/v1/rebolucion)I have also found that queries through the console (http://developer.yahoo.com/yql/console/) work correctly but if I run in the browser (through navigation bar) i get the same error:ON CONSOLE (http://developer.yahoo.com/yql/console/)INPUT:	select * from search.spelling where query="rebolucion" and appid="APP_ID"RESULT:	<?xml version="1.0" encoding="UTF-8"?>	<query xmlns:yahoo="http://www.yahooapis.com/v1/base.rng"				yahoo:count="1" yahoo:created="2011-08-04T14:05:56Z" yahoo:lang="en-US">		<diagnostics>			<publiclyCallable>true</publiclyCallable>			<url execution-start-time="1312466755947"				execution-stop-time="1312466756013" execution-time="66"><![CDATA[http://boss.yahooapis.com/ysearch/spelling/v1/rebolucion?format=xml]]></url>			<user-time>67</user-time>			<service-time>66</service-time>			<build-version>20293</build-version>		</diagnostics>		<results>			<suggestion xmlns="http://www.inktomi.com/">revolucion</suggestion>		</results>	</query>AS A GET URL IN THE BROWSER:URL:	http://query.yahooapis.com/v1/public/yql?q=select%20*%20from%20search.spelling%20where%20query%3D%22rebolucion%22%20and%20appid%3D%22APP_ID%22&diagnostics=trueRESULT:	<query yahoo:count="0" yahoo:created="2011-08-04T14:12:57Z" yahoo:lang="en-US">		<diagnostics>			<publiclyCallable>true</publiclyCallable>			<url execution-start-time="1312467177449" execution-stop-time="1312467177645" execution-time="196" http-status-code="999"				http-status-message="Unable to process request at this time -- error 999">						http://boss.yahooapis.com/ysearch/spelling/v1/rebolucion?format=xml			</url>			<user-time>199</user-time>			<service-time>196</service-time>			<build-version>20293</build-version>		</diagnostics>		<results/>	</query>Please, anyone knows where this problem comes from? Maybe there is a problem in the service? or a change in the Yahoo policy? or any other idea?.Thank you very much!