Access Virus Snow problems!

[xplode]

A few weeks ago I bought 2 synthesizers, a Roland Juno DI and a Access Virus Snow.
Both of them are working and I can play the Snow with the keyboard of the Juno DI.
But when I started to try some recordings I discovered a few problems....
("I first read all the threads on this forum to find out if someone knows about this problems but i didn't found the awnsers.")

1:
The Snow isn't always synced with Logic 8 even on USB mode.
This is a known problem on this forum ''I know''... So i decided to use
the analog outputs on the back.
I think that the sound from the analog outs is much better too.

2:
I bought a Roland midi interface with USB for midi connection so that
i don't need to use the USB of the Snow and the Juno Di.
But now the Snow don't give a midi signal to Logic 8 and back from Logic 8 to the Snow.
So the Snow don't get tempo settings etc...
The midi go's from the Imac to USB midi interface than to the midi IN of the Juno DI then from the midi OUT from the Juno DI to the midi IN of The Snow and at last back from the midi OUT of the Snow to the midi interface.

3:When I have connected USB and also analog outs together on the Virus Snow there is a noise sound comming from the Virus Snow from the analog outs that I don't want. And when I pull out the USB and let the analog outs in it is gone.

4:
I really don't understand how else I can make my synths to be good recorded?!
I have tried all the possibilities with USB and Total Integration.
With midi on the roland interface and audio on analog outs of the synths.
Both connected to Logic Pro 8 on my Imac via my Apogee Duet soundcard.
I also discovered that the Juno Di and also the Virus Snow have more crashed when they are connected with USB...
So i don't want to use USB anymore... I want to use both synthesizers as hardware equipment.


Can anyone please help me out?

Sorry for my bad English (i'm Dutch)