So, I tried installing the Aether and PremiumWood with the compadibility fix on my sister's computer, blackscreen.
Then, I tried installing the Aether on my sister's computer. Blackscreen.
Then, I copied my .minecraft folder, fully functional, onto a USB, and gave it to my sister. Blackscreen.
Then I tried PremiumWood, and blackscreen.
On log in, her computer comes up with the error "The application or DLL C:\Documents and Settings\<her logon>\Application Data\.minecraft\bin\natives\OpenAL64.dll is not a valid Windows image. Please check this against your installation diskette." which I believe would be very related.
Then, I tried installing the Aether on my sister's computer. Blackscreen.
Then, I copied my .minecraft folder, fully functional, onto a USB, and gave it to my sister. Blackscreen.
Then I tried PremiumWood, and blackscreen.
On log in, her computer comes up with the error "The application or DLL C:\Documents and Settings\<her logon>\Application Data\.minecraft\bin\natives\OpenAL64.dll is not a valid Windows image. Please check this against your installation diskette." which I believe would be very related.
FOR SCIENCE!!