Hi,
this could be to do with medium trust but I can't find anything in the manuals referring to indexes under medium trust. I am getting the following error when I try to rebuild an index (without the index I cannot get the search to find anything)

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EventType: E

EventTime: 11/18/2009 2:38:33 PM

Source: SmartSearch

EventCode: Index

EventDescription: Message: Lock obtain timed out: SimpleFSLock@xxx\App_Data\CMSModules\SmartSearch\slopes\write.lock
Stack Trace:
at Lucene.Net.Store.Lock.Obtain(Int64 lockWaitTimeout)
at Lucene.Net.Index.IndexWriter.Init(Directory d, Analyzer a, Boolean create, Boolean closeDir)
at Lucene.Net.Index.IndexWriter.Init(String path, Analyzer a, Boolean create)
at Lucene.Net.Index.IndexWriter..ctor(String path, Analyzer a, Boolean create)
at CMS.SiteProvider.SearchIndexInfo.GetWriter(Boolean create)
at CMS.SiteProvider.SearchHelper.Optimize(SearchIndexInfo srchInfo)
at CMS.SiteProvider.SearchTaskInfoProvider.TaskIndexer()
at CMS.SiteProvider.SearchTaskInfoProvider.Run()

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It's quite odd because the index appears to have built once, but won't do it again and another attempt at an index won't build at all.
Does anyone have any suggestions as to how I get an index rebuilt?
Many thanks.