I recently had to install Snow Leapord to play the new Source games and was annoyed as hell about the fact that I was paying 30 more dollars to get a game I thought I was buying on sale. This comic should hit me exactly where I itch. Except it didn't. It had no effect.
Why? Really bad timing.
To quote Yahtzee (The reason this website exists): Good visual art is succinct and punchy. A good comic works on maximizing a small amount of words and actions to create a distinct moment of punchiness.
The text balloons in the first panel are way too long for a comic strip, it starts things off with a weirdly front-heavy pace for what is a really small amount of set-up (That a mac user is defending her computer)
Still, that's not the worst, worse is the next two panels, both of which could easily be cut...again, slow pacing meaning too much lead-up to the joke.
Then, it spends essentially four panels establishing one sentence of information. Again, it loses all the punch of the information by establishing it really slowly.
Then, the last two panels, Her angry expression is unnecessary, all it does is telegraph the upcoming joke and weaken its impact, the fact that she's hurling it out the window screaming angrily conveys all the information that frame 8 did.
It's a shame, since the joke is at its heart actually pretty good: Mac users defend our hip, user-friendly computers against the PC elitists but are, privately, tormented by their inability to play games. But that joke just takes too long getting there. Jokes are like meteors, too much atmosphere and they won't make any impact.
How could this comic be better? Well, without rewriting it, if you just cut it down to frame 1, frame 6, and frame 9, it would have had all the same information and been a lot snappier.