SW Crash ...anybody ?

Search engines on this forum dont seen the best so maybe itis already covered somewhere...
On some assemblies when i try and search in the feature managertree (top) i punch in one # or letter and SW completely crashes notjust a freeze and no response..its gone instantly

anybody seen this too ? besides my co-workers ?

running SW 2008 S.P 5.0SolidworksAssemblies