Why kernel 3.14.25 real problem in working Calculate?

Why kernel 3:14:25 real problem in working Calculate?
When I install the kernel Calculate 3.14.17, I have no problems at work. When to update Calculate, I can not get into the system. Update I have done according to this manual for portage and software.
http://www.calculate-linux.org/main/en/system_update_guide (1.cl-update --sync-only --update-other or 2.cl-update).

Are you trying to update the kernel for Calculate? If so I would try it this way.
To keep getting the latest unmasked kernel._

 # echo "sys-kernel/calculate-sources*" >> /etc/portage/package.keywords/custom
 # cl-update

To get kernel you are looking for.

 # echo "=sys-kernel/calculate-sources-3.14.25" >> /etc/portage/package.keywords/custom
 # cl-update

At least this is what I do for kernel upgrades. Let me know if the process works for you.

Earlier I exercised update without any problem.Today I installed Calculate 14.12.

Glad you found a solution that worked for you. In the future you can use the process I listed to upgrade your kernel.