I dealt with this same issue last year. The key thing is to make sure you're using the latest version of your software and check forums like Slashdot or Ars Technica for specific fixes. Technology changes so fast that advice from even 6 months ago can be outdated.

My advice: don't overthink it. Pick the option that works best for your situation right now. Technology changes every 2-3 years anyway so nothing you choose today is permanent. The best technology is the one you actually use.

I work in IT and see this question a lot. The short answer is yes, it's worth doing. The long answer depends on your specific setup. What operating system are you running? That makes a big difference in the approach.

I've been using computers since the early 90s and the answer to this has changed dramatically over the years. Right now, the best approach is to use open source alternatives when possible — they're usually free and often better than commercial products.

First thing I'd do is reboot and try again. Sounds dumb but you'd be amazed how many 'tech problems' fix themselves with a restart. If that doesn't work, write down the EXACT error message and search for it — somebody on Experts-Exchange or a Geocities help page has hit the same thing.