I just got i krita a few weeks ago and I'm running into some problems.

After a few minutes in the program it crashes for no reason.

Everything I paint looks blurry not clean or crisp.

And for some reason my cursor will stop painting even in mid painting.

It's this normal? Can I fix it? Will the new version take care of all this?

I have 2.8.3

Can you please describe the operating system you're using, as well as your graphics setup?
It would also be helpful to know if you're painting with a mouse or with a stylus.

I'm running windows 7 home premium 64 bit with intel core i5-2450M and amd radeon graphics hd 7670M 1 gb vram on an Acer laptop. I have a bamboo tablet but it's in storage for going back to school. I've been testing krita with my pressure mouse on my laptop.

Anyone?

Everything I paint looks blurry not clean or crisp.

This one depends on what you would consider blurry. As such, it could be the fault of a) trilinear filtering b)the brushes c)the technique you use, etc.

The few minutes in problem could be a memory leak? Try the latest version in the windows subforum, it might have been fixed.
Don't know why pressure sensitivity just dissapears. I don't think many people use krita with pressure sensitive mice.

I never even heard of pressure sensitive mice... The latest builds are here: http://files.kde.org/krita. http://files.kde.org/krita/krita_x64_2.8.79.15.msi should have a fix for the memory leak issue that was present in .14.