http://presonus.com/compatibility.html
• ATI RADEON 9000/9001 IGP video chipset. Symptoms are consistent clicks and pops during audio playback. This video chipset is only found in PC laptops and is entirely integrated as the computer’s only video controller. We strongly recommend that you do not get a system with this chipset, as there is currently no workaround for this incompatibility.
• USB/firewire and s400/s800 combo cards are not compatible. Symptoms are usually no audio recording/playback but device will install and sync, erratic audio performance and rarely will not allow the device to install or sync. We recommend a firewire card that ONLY has s400 firewire connections and preferably with a Texas Instruments or VIA chipset.
• Firewire cards with NEC chipsets are not compatible. Symptoms are similar or the same as combo cards.
I have a TI chip, video is OK.
I found a www.microsoft.com page about SP2 updating the firewire port to type '1000' or whatever and a download to do the registry change. Lost the page, too tired to deal with that now.
This sweetwater site has some optimisation tips
http://www.sweetwater.com/sweetcare/ts/ ... d=PreSonus
I've tried the options on the system tray and the app, it's on a 4 to 6 pin cable, plugged into the wall. Reboots and different audio apps, poked around for a while. I'd rather be watching my recorded World Cup games.