soundcard advice please

  GrumpyJ 15:20 19 Feb 07

I use sibelius music notation software to compose.
I have recently upgraded from a SB Audigy LS soundcard to a Soundblaster X-Fi Xtreme Audio, as the new card has a "Soundfont manager" where I can load new SF2 fonts.Unfortunatly everytime I try to open Sibelius, the PC crashes and reboots.
I have tried everything including downloading the latest drivers, uninstaling and reinstaling etc, but it still does it.
Although I am in correspondence with Creative, they are draging their heels.
Does anyone know of a good soundcard with a "Soundfont manager " facility for SF2 and midi in/out. Price approx £50 - £60 ish, or any advise what I could try to get the X-Fi to work.
Win XPhome SP2 up to date

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