[TechnoProdigy]

So to stop my computer from constantly crashing, I should open it up and blow out the dust?

That will only help if it's overheating. If it's a laptop, be very careful when taking it apart and keep track of any and all screws while doing so.

[cobaya18]

So to stop my computer from constantly crashing, I should open it up and blow up the dust?

FTFY

[Joey791]

You'll need to provide a bit more information than that. What message do you get when it crashes? Are you just being disconnected? Does the entire client crash? Do you get an error log? Minecraft will save error logs to your minecraft folder.

It freezes up for about a minute them the screen dims into a white glow then it crashes and logs me out and a crash report pops up on my home screen, but sometimes I have to log out entirely for it to stop freezing.

[eah]

You'll need to provide a bit more information than that. What message do you get when it crashes? Are you just being disconnected? Does the entire client crash? Do you get an error log? Minecraft will save error logs to your minecraft folder.

It freezes up for about a minute them the screen dims into a white glow then it crashes and logs me out and a crash report pops up on my home screen, but sometimes I have to log out entirely for it to stop freezing.

What operating system are you running? Windows 8? Windows 7? Mac OS X? Debian? Ubuntu? Solaris? DOS? Windows Vista?

[TechnoProdigy]

You'll need to provide a bit more information than that. What message do you get when it crashes? Are you just being disconnected? Does the entire client crash? Do you get an error log? Minecraft will save error logs to your minecraft folder.

It freezes up for about a minute them the screen dims into a white glow then it crashes and logs me out and a crash report pops up on my home screen, but sometimes I have to log out entirely for it to stop freezing.

Are you talking about in the Minecraft client? What you described sounds like it might be your graphics card overheating or bugging out.

[Surgeonbsg]

Update Java and make sure you are running the proper version. For example if you are running Windows 7 64bit you will need to be running the latest 64bit version of Java. I've seen these symptoms with the 32bit Java client and Minecraft before.

Just a thought.