WordPress Install fixes things…..for a while?

On Sunday was when my problems began. It seemed the template was EXTREMELY off kilter! Today, my template is left justified and I can’t seem to figure out how to get it centered.
When this happened, I did the following:

Saturday night, I had the most recent version of WordPress. However, I reinstalled it at the dashboard, and it snapped everything back into place. Yea!

On Sunday I awoke to find the same problems. Sad face. So I then disabled all the plugins, did an upgrade of my template, and ran an upgrade of wordpress again. Things were better and now the only two issues I am working through are:

1) What do I have to do to get the template centered? And, if I reinstall WordPress, daily it fixes the problem for a while, which perplexes me.

2) Since I did the upgrade, I need to figure out how to have my categories not appear in the recent article section WHILE they are in the category section. When a new category article is posted, I would THEN like them to fall to the recent article section.

3) And, is anyone aware of WHY on Sunday things suddenly went South after 10 months? I opened a ticket with my server support, and it doesn’t appear we were hacked. Perplexed…..

If anyone can help me on this, I would appreciate it!