[CentOS] kernel boot issues

Hello,

I run CentOS release 6.10 (Final) on a Dell Inspiron M6700.

2.6.32-754.el6.x86_64 boots, and is whaat I am running now


none of these, updated ones, won't boot:

2.6.32-754.3.5.el6.x86_64

2.6.32-754.6.3.el6.x86_64

2.6.32-754.9.1.el6.x86_64

2.6.32-754.10.1.el6.x86_64


They all show the same 'symptom',  grub says it is booting that kernel, 
screen blanks, solid corned in the left-top corner...  and that's whee 
it stays.

I know this is vague, but any ideas?

thanks,

Ron