It happens nearly every summer.
Someone comes out with an update or upgrade, and I decide I need it. They take turns. Sibelius, Apple (OS X), Virtual Drumline, Kontakt, others.
And every summer, during marching band writing season, I spend a day or two scouring forums and FAQs looking for answers. And rarely find them. Sometimes it's an easy fix for a problem that is quite common among other folks, but too often, it seems like I'm the only one with the problem I'm having.
You might think I'm talking about Apple's new operating system "Lion", but I've learned not to jump into a brand new operating system until the kinks have been worked out. My most recent issue stems from a Kontakt Player update, which I mostly use within Sibelius. It will work out soon, I suppose, but never soon enough. I'm not a big fan of reading forums all day.
Advice: make sure you know what you're doing when it's time to make an upgrade. Be sure your programs will all be compatible with the updates, and if you can wait and not miss anything, it might be a good bet to just wait.
Sweetwater has this helpful post regarding Lion and its compatibility with several music-related programs.
