My computer is new, purchased from no more than 6 months.
I don’t think that this is one problem of OS.
All others softwares of CS4-Master Collection (AfterEffects, Photoshop x32 and x64 Bit, PremierePro, Acrobat 9,ecc…) works very well !
Also others non-Adobe-branded softwares works very well.
I have installed successfully Autodesk 3DSMax9 x32 and x64Bit, with plugins such SitniSati Afterburn,Dreamscape…Autodesk Movimento; plugins of Premiere Pro such Quicktracks Audio; Trapcode Starglow,Shine,Particular; Power DVD, Nero9, etc…
I also updated Encore CS4 to version 4.0.1, without any results…
Please help me!