Yes, Goliath is more of an updated Colossus, or so it seems.
But Blob, what specs does your PC have, and what software do you use?
Software:
I use Sibelius 5.
PC:
AMD Athlon 64 X2 Dual
Core Processor 3800+
Clockspeed: 2.01 GHz, 3,00 GB
Well, Sibelius 5 is so much slower and seems to use so much more RAM than its predecessors, sound is clipping already if I use more than two instruments of Garritan. The soundcard is onboard, so a specific soundcard might help, but I think our PC might just be too old, no?
I was quite knowledgable when it comes to PCs, but now I think I might take some advice from people like you.
Mano