Admin NIghtmare!

Here is the message:

Warning: main(.//wp-includes/classes.php) [function.main]: failed to open stream: No such file or directory in ./wp-load.php on line 46

Can’t get into the Admin area. If I replace the files mentioned in the Warning above, I get a different Warning with two other files apparently “missing”, I replace those and we just keep going round and round, between the front end working, then the back end working, but not both at the same time…!!!

Is there anyone else having this problem with the latest version?

I’ve tried a bunch of stuff short of a complete re-install without any success….. what a SNAFU!

I have WordPress running on my GoDaddy account without any problems, this particular install is on a different hosting company. A local hosting provider, I’m wondering if the issue lies there and what questions I should be asking of their tech support people?

I didn’t get any help in the other thread…

Any suggestions… really need some help here, thanks!