Issue with the 'Where used' function in explorer

Until SW 2001SP4, whenever i clicked on a part within the file tree and then clicked on where used. the where used location would apear instantly. We have 100's of component parts at our company so this is very useful to locate where files are used. I am however having issues wince updating to SP04! every time i now click on a part its takes forever for soliworks to locate where used. You get the dialogue box showing soliworks seaching through folders. SW Explorer never used to do this.

Have i unclicked a setting? has the feature been changed? i dont know. its frustrating as it now takes ages to locate files.

Any advice is welcome

Thank you

Rhys

SolidworksSolidworks Explorer