I have compac pc running visa I have AMD semptron [tm] st-42 proscesser 3gb memory 298gb harddrive with 106 free space. We were playing a gig the other night about 3hours into it. Everything going fine got to some new songs the other guy just added earlir that night. it slowed to a crawl and then locked up. We fianlly changed comp. His newer runnin I tried the next day and they workrd but slow start. So I froze a couple realtracks that helped.We I insttalled biab this was an upgrade In the realtracks foder it asked the if I want to erace unneeded files I haven't this would this help or would I lose some stuff I'm useing now? any thoughts maybe run a register cleaner or somrthing like that. John