Garage Band 6.0.5 update - (Mac 10.6.8) Snow leopard.

Hi folks,

Garage band ceased to load on my mac - previous to updating to my current Snow Leopard..

To try and solve the problem I updated to Snow Leopard - no resolution.

I then updated to Garage Band 6.0.5 - still the same problem as before I updated anything.

It tries to open.. says 'Initializing'.. 'Scanning for Jam Packs...'

and then I get the 'Garage Band quit unexpectedly.' message.

Any advice much appreciated..

Thanks!