I’m wondering the same thing myself. So far,I haven’t had problems with Vista itself; but have had problems with other programs that didn’t bother to adapt.
Same here. Unfortunately, Vista wasn't made to be backwards-compatible with programs that were out before it was on the market. That meant that we either needed to upgrade the errant program or remove Vista and buy & install XP.
The other software manufacturers weren't all willing to update their programs either - the version of Intuit's Quicken software that worked fine on my XP machine did not work on Vista. Instead of offering a free patch, it was necessary to buy a newer version of Quicken (complete with all the bloated bells and whistles that I didn't want).