Palm and my Medion 8818

I can't sync my Palm (well Treo to tell thr truth) to my new PC. The Palm website helpfully says:

Please note, we provide no support for use of our software or for synchronization of our devices with these operating systems:

• Windows XP Tablet PC Edition
• Windows XP Media Center Edition
• Windows XP Professional x64
• Windows Server 2003
• Windows Small Business Server 2003
• Windows NT Server
• Any Windows Terminal Server version
• Dual- or Multiple-CPU computers

I score twice - Windows XP Media Centre Edition running on a dual core. So what did Palm mess up so badly?