Computer Problems!

Am I the only one with this problem? It seems like every

5 or 6 months or so I'm having  some kind of problem 

with my computer. I buy virus protection that doesn't

seem to be working. I've even gotten a new computer

in some cases, still nothing works. How can a person 

blog or run an online business under these circumstances?

Anyone else having or has had these problems? Makes

you just want to give up altogether.<_>