@ Head

I've only been seriously on Vista for a week or so, but so far I have found many frustrations, thankfully I've managed to work around.

1. They removed the ability to mark a file type as "Prompt to download". You use to get to this via file associations, now you need to use the registry.
   
2. I had all sorts of weird problems in Internet Explorer around using Microsoft's download tool, or reading blogs etc. Turned out the problem was I moved my %temp% path, and internet explorer couldn't write to the Low directory in that until I marked the directory as having low permissions:
   icacls %temp%\Low /setintegritylevel LOW(OI)(CI)
   That fixed the problem. Even looking tat that now, and given there was no error message from IE, I'm really amazed I got that one solved ;)
   
3. I went to open a PPT deck today and couldn't open it in Vista with PowerPoint 2007. On my XP PS2 machine using PowerPoint 2007 I could. The error message in Vista was it couldn't find some printer, yet I deliberately have my print spooler stopped in XP and in Vista. Manually starting it when needed. Well for some reason in Vista I needed to manual start the print spooler, yet in XP I didn't.