I am able to open Cubase sx. I am able to play some songs. However, most of the songs (songs I made recently ) do not open and then Cubase crashes. Can anyone help? Thanks

I don't know it quincedence but it seems to have happened when i downloaded abode flash player, now I can not get rid of it.

I have a pc. Windows xp, m audio mobile pre interface, 2.5 gigs of memory,