Can you create and work in a new project? Is it only the old CS4 projects that give trouble?
As I have written above:
I cannot open my Premier CS5 projects, I cannot open a Premiere CS4 project and if I create a new project , the program locks (no response) when I create a sequence. In short: it locks no matter what I do.
I have uninstalled CS5 Premium Production and reinstalled it again, but it did not help. I have uninstalled it and installed CS4 and here everything works incl. Premiere Pro CS4.
The other CS5 64 bit programs - After Effects and Photoshop - works . The only program that does not work is Premiere Pro 64 bit (CS5)
CS4 does NOT give problems - it is Premiere CS5 that locks (no response). I can create a new project, but when I create a sequence it locks (no response).
Any third party tools we should know about? Matrox, AJA, BlackMagic? Any installed effects or plug-ins like Reg Giant or VSTs?
the only programs installed apart from Production Premium CS4 and CS5 are:
Cyberlink Powerlink9 (updated) - was also installed before Vista reinstallation.
Microsoft Security Essentials - was also installed before Vista reinstallation.
Norton 360 v. 4.0 - was also installed before Vista reinstallation, but problem occured before it was reinstalled.
Microsoft Office 2007 - was also installed before Vista reinstallation, but problem occured before it was reinstalled.
It is very peculiar!!
Personally, I'd seriously consider not having any of the four you listed on a production rig. They're best used on a second computer. (Except for Norton, which is best not used at all. A demon that software is!)
With the information provided, I'd probably start thinking about a wipe/reinstall from scratch. (Only without the four listed.)
I think it is worth trying - but it is
peculiar that the installed programs did not
give rise to any problems prior to the reinstallation of Vista.
Everything worked before the reinstallation - and the problem with Premiere CS5 came after the reinstallation of Vista - AND before the mentioned programs were installed. This means that CS5 Production Premium was the only installed program when I experienced the problem!!. Therefore he problem cannot come from the other programs. This is very odd.
My guess is your 'reinstall' got smurfed. This time wipe the hard drive first, then reinstall everything from scratch. (Don't forget to back up before you wipe.)