I know PT LE is a different beast but I've had not a single problem either on Mac (10.4.11) or PC (XP SP2) on my MacPro, using PT HD 7.4 - I do know that, despite the initial reports, Pro Tools 7 is not fully compatible with Windows Vista. Pro Tools 8 is. This can be a PITA but I am thinking your problems could originate from this. If you can - again..PITA - you should go for a more reliable and tested OS setup for Pro Tools, which was and still is Windows XP SP3 (as of April 2008 Digidesign reported an "ok to upgrade" from SP2 to SP3..I am still running SP2, however).
I would also expect no problems with Sonar, on the other hand, because it's reported to be fully Vista compatible and ..maybe even 64bit if I am not mistaken.
Again, I know it could be a PITA to downgrade to XP SP2 but if you're getting into PT I might assume you're stepping onto a more serious workflow or requirement, maybe collaborating or interfacing with studios having PT HD? I don't know, anyway, it might be well worth it.
It's been a while since I stopped caring about the latest and went for the safest. With PT and Digidesign it's almost a must. (I am not in any way referring to you or what you've done, I very well know the good sides of Vista especially if Sonar goes 64bit).
I would also expect no problems with Sonar, on the other hand, because it's reported to be fully Vista compatible and ..maybe even 64bit if I am not mistaken.
Again, I know it could be a PITA to downgrade to XP SP2 but if you're getting into PT I might assume you're stepping onto a more serious workflow or requirement, maybe collaborating or interfacing with studios having PT HD? I don't know, anyway, it might be well worth it.
It's been a while since I stopped caring about the latest and went for the safest. With PT and Digidesign it's almost a must. (I am not in any way referring to you or what you've done, I very well know the good sides of Vista especially if Sonar goes 64bit).