About trying kernels
In different folders there are different kernels like this one http://kernel.ubuntu.com/~kernel-ppa/mainline/daily/2010-10-31-maverick/linux-image-2.6.36-999-generic_2.6.36-999.201010311115_i386.deb
See the file name linux-image-2.6.36-999-generic_2.6.36-999.201010311115_i386.deb for i386 architecture, if you have ubuntu 32bit. Just install these by double clicking and reboot.
About trying kernels
In different folders there are different kernels like this one http:// kernel. ubuntu. com/~kernel- ppa/mainline/ daily/2010- 10-31-maverick/ linux-image- 2.6.36- 999-generic_ 2.6.36- 999.20101031111 5_i386. deb
See the file name linux-image- 2.6.36- 999-generic_ 2.6.36- 999.20101031111 5_i386. deb for i386 architecture, if you have ubuntu 32bit. Just install these by double clicking and reboot.