Why are my intrasite links and heme files disappearing after upgrading?

Hello all,

First time poster, new WordPress user. I have a few problems that have recently begun

to pop up. I would appreciate any help you can give me. Thank you in advance.

I am not sure if these are WordPress errors or a problem with my hosting company,

Globat.com. I’m sending them an email about these issues as well.

This happens on my site, http://www.chemicalshift.com/ , and my wife’s site,

http://www.blessedblogger.com/ , as well. Both sites are hosted through the same

company, not on the same account though.

* Themes Disappearing

– I don’t remember this happening to me in 1.5.1.2, but after upgrading to 1.5.1.3,

sometimes when I update my theme files I get an error message saying the theme can not

be found.

– To resolve it, I sometimes have to re-upload the theme files into the appropriate

directory.

* Intrasite Links Disappearing

– When updating pages, sometimes the pages will update fine without errors, but when I

try to check them when navigating through my site, I get 404 Not Found.

– The problem seems intermittent. I’m not sure if it resolves itself on it’s own at

my host’s end. I have tried to fix it by adjusting settings through the Site

Administration panels.

– I think the intrasite links might be repaired by updating the Permalink Structure.

It appears to work sometimes, but not always.

This is getting to be a nuisance. Again, any assistance is greatly appreciated.

Thank you.

Sean Clancy