Whichever side of the help you are on, my guess is that it may have been a frustrating experience. Unless is is a common problem it is often difficult to help with something that you cannot see, but it doesn't have to be this way. Checkout these easy to use screen sharing tools that almost anyone can use to quickly demonstrate and record what is happening on their computer.
Generate a help URL so someone can send you instant screen recordings to help trouble shoot computer issues.
Share a screen live. Even lets you remotely control mouse and keyboard.
One-click screen capture recording on Windows or Mac Computers that you can download and share.
If you are a Chrome user, here are two additional favorite screencast extensions you may want to take a look at:
What other tools do you like to use for ScreenCasts?