I currently run Minecraft on my Mac laptop comp, and it runs with just a little lag, but I decided to switch to my desktop computer to help kill some lag. When I go to play Minecraft, however, it just has a loading screen that ends saying "Switching Applets" and then it goes black. I've let it sit for quite a while, but it is still black. Help?
My desktop is a Dell i bought in 2002 (I know, old) and it runs Windows XP home, and so far it works most games with minimal lag (It, surprisingly, runs TF2 on Steam without a problem, along with most others)